SCIENTIFIC SCUM'S. Three pounds of muriate of lime and one pound of snow in tlio ooldest mix ture knowu to science. In examining the heart in a number of the" dying, Ronohat found the, longest interval between the pulsations was six seconds. At one thousand yards the rifled gun is eleven times, and at two thousand thirteen times, more accurate than the smooth bore. A man may go into u temperature of three hundred degrees of heat without having the heat of his body raised more than two or three degrees. A diamond can easily be consumed by being placed in a cavity of charcoal and urging upon it the (lame of a spirit lamp by means of a stream of oxygen. Waves of sound go only 377 yards in a second. The earth itself travels I S miles. Light, In,ooo times faster than that; electricity, half as fast again as light. The common camphor of the shops is obtained from the camphor laurel by the process of refining. The unrefined camphor much resembles light-brown sngar. In experiments to ascertain the depths beneath the surface of tho sea sight conld penetrate, it was found that twen ty-five fathoms was the maximum of visibility. And when the temperature of tho water was highest the water was clearest. Naphtha, or fluid petroleum, is, according to tho opinion of many chem ists, formed by the action of heat on bituminous matter; but others maintain that it is generated by the action of water. Large iinantities of naphtha are obtained from the distillation of coal. Mr. C. Sltaler Smith, who has had much experience in testing the violence of wind-storms, donbts whether the pressure of a direct wind or gale ever exceeds thirty pounds per square foot. The only exception to this maximum was an unusually violent storm at Mast St. Louis in 1871, when the wind blew over a locomotive. In this instance the pressure must have been ninety-three pounds per square toot. How the President's Room Is Cooled. Tho machine by which President Garfield's room is cooled was furnished by Mr. Jennings, of Raltimore. It con sists of a cast-iron chamber, about ton feet long and three feet.wide and three high, filled with vertical iron frames covered with cotton terry or Turkish toweling. These screens are placed half an inch apart, and represent some three thonsand feet of cooling surface. Immediately over these vertical screens is placed a coil of inch iron pipe, the lower side of which is filled with fine perforations. Into n galvanized iron tank, holding 1,000 gallons of water, is pnt finely granulated or shaved ice. This water Is sprayed upon the sheets in tho lower tank constantly. In each end of the iron chamber are openings thirteen inches sqnare. To tho onter end of this chamber is a pipe connect ing with an ontdoor air conductor. To the opposite end is connected a similar pipe leading into an ice chamber at its ! top, and from the bottom of the same a i pipe leads to a small exhanst fan, and j from the fan the now cold and dry air ' is forced direct into the President's > room through a fine some twenty feet in lengtli. Air received at ninety-nine de grees temperature is supplied at the r..to of 2 1,000 cubic feet per hour at the regi- b>r in the President's room at fifty-four degrees, and with the windows and doors open the temperature at tho President's bed (twenty-five feet away) ia maintained steadily at seventy-five ' grees day and night. The Era of Advertising. Froperly regarded the advertising columns of a newspaper are among the most important, for no man really tie comes acquainted even with the news of the day nntil he has thornghly pe rused the advertisements. They are tho pnlse of business and universal activity. They contain not only rare specimens of | human idiosyncrasies, but afford a view of life in every possible phase. They aid the arts and sciences, and stimulate trade by supplying an exchange in which buyers and sellers constantly and conveniently meet. They speak of change, sometimes exciting a smile, sometimes a tear. To the sick man they convey a promise of health; to the poor man they hold out a hope of wealth; the pleasure seeker is posted in amusements; the hook buyer learns the title and price of the new hooks as they appear; tho house hunter reads of a de * sirable and eligible tenement and the honse owner secures a tenant; the traveler is informed of the great supe riority of every route over every other route, the nneroploy d of employment in the various branches of industry; in fine, every imaginable want is snppo sitionsly supplied l>y the advertising department of a newspaper.—Philadnl phia Tranter i] 4. Boys will ultimately learn that it k beat to let u bumblebee. TOPICS OF TIIK WAY. Ono of tho puzzles of pauperism is now awaiting solution in London, where, in spite of tho fact that, a much larger volume of trado is transacted than a year ago, tho number of paupers was considerably increased. Tho (HO/MBays: It is a noteworthy circumstance that | during tho time of acnto trade depres- I sion London compared very favorably i with other divisions in tho matter of j pauperism, and tho theory was started ! that this comparative immunity resulted j from the very multifarious nature of the j M n anx other division, with tho exception I of tho York and tho West Midland. An epidemic disease of a peculiarly ! deadly nature, which carries off horses and cattle by the thousand, and claims i also its human victims yeorly among the population of the capital, has made its appearance in more than one district of St. Petersburg and Novgorod, and i H spreading with alarming rapidity. Horses, which, after land, are the most valued property of the peasants, are dy ing by the score, and many cases of ill ness have occurred among the popnla- • tion of the infected x*illages. The local authorities are helpless, owing partly to the want of efficient doctors and vcter inary surgeons, and partly to tho fatal istic tendencies of tho peasants, who, trusting all to Providence, refuse j>ro cantion, and sell in tho neight>oring villages the skins of tho beasts that have died of the disease. According to the recently published report of the mine inspectors of the ! anthracite region, the number of persons killed by accidents in tho coal mines of Penn --ivania during tho year IKBQ is 202, while *l7l were severely in jured. Many of the latter have died of their injuries since tho report was made, and others are crippled for life. In the 1 rtish and hurry of the market very little ; heed is given to thoso who fall in the I grim struggle for bread, yet their sud den removal from the rnnks of toil swells tho long list of widows and or phans and scatters want through many a hamlet. Most of these who fall vie- i tims to tho perils tif mining aro stricken down without a moment's warning, and . their blackened and mangled forms i are carried back from their work to the 1 homes which they loft a few honrs IK?- I fore so full of life and hope. A scene both lndierons and ghastly was presented in a recent ease of at- j 1 tempted suicido in Columbus, Ohio. | ' Tho woman who wished to end her life 1 hired a little boy, ten years old, to ' assist her in tho donperato deed. Hhe i ' succeeded in breaking, not her neck, hut her nose, and at tho subsequent I ' judicial investigation that was male. ' ' the boy testified as follows "Hhe got 1 on tho box, and I asked her for tho ten cents heforo she pnt her head in the ' rope. Hhe wouldn't give mo the ten ' cents, and I let hor go, and she didn't 1 put her head in. Hhe IK llerod and fell ' down, and then yon men came running 1 and I got out of tho way." < >no cannot I help wondering how the friends of the little fellow, and indeed he himself, after he had grown older, would have ( felt had tho woman succeeded in her s design; and also the probable effect of | the affair npon tho child's moral sensi- \ hilitios. The case is probably unique * i in tho annals of crime. I An indignant head-clerk in the Balti. ] more postofflce wants tho newspajiers to ] convey to the pnblic his emphatic pro- j < test against tho latest |>opnlar ma"ia— < confined as yet to sentimental writers I of billet donx—namely, the sticking of i postage stamps npon nnnsnal and ont- ; i of-the-way parts of envelopes. There 1 I is, it seems, a " postage-stamp code" of ( flirtation, and each position of a stamp ] expresses some particular sentiment, i Now, tho law allows tho stamp to be j i put anywhere on tho envelope the 1 sender may please, lint its position in i a matter of importance to tho canceling ' clerls. "As long," says the Baltimorc official, "as the stamps are in the ortho dox place—the nppor right-hand corner I —they can work away like bees and get ] through qnickly, because the motion i from the ink-pad to the stamp's a con- ; i tinuons one; but just as soon as they ; have to hunt around over tho letter to i find where tho stamp is wafered, why, i they can't get along near so fast. Please hint throngh your paper that every let- ' ter that comes here not stamped with a single stamp in the right-hand upper corner wo use to make paper chickens out of." The Washington World and Cit Urn Soiditr says that there lieing now pond ing in the war department great num bers of volunteer pension claims which cannot l>e satisfactorily verified for want of information, which missing records of discontinued volunteer com mands wonld afford, and it having trans pired in many instances that officers of he late volunteer forces have still ia their possession or under their control $' • il . i books and othor rccordH jiortaining to their corps, divisions, brigades, regi ments and companies, Adjutant-General Drum has issued a circular calling at tention to the fact that all such books and records should ho deposited in tho militant-general's ollice, and earnestly requesting that they bo forwarded with out delay to tho adjutant-general at Washington. No exponHe, othor than postngo or proper express charges (when the packages exceed four pounds, tho limit for mail parcels), can he paid by the government. In tho interest of tho great number of widows,, orphans and fisuldod soldiers whose claims uro in olvcd, the newspapers of tho country ro requested to give tho substance of his circular tho greatest publicity. A Chinese Newspaper. Ihero are two Chinese newspapers in this city, both weekly. In company with Interpreter Howe a visit was re cently made to both ..Aires, The Ori '■tihtl (117ih /{>•<•) was lirst visited. The Kt establishment was found in charge of its proprietor, publisher, edi tor, pressman, compositor, bookkeeper, reporter and ofllco boy, Veo Jenn, who was discovered seated at a table in his sanctum busily c:. . 1 in forming characters on a slip of pap. A small, tine brush, not much larger than an ordinary penholder, was dipped in a peculiar black ink, and the writing, or printing, performed with great dexter ity and accuracy. In answer to questions Yee .lean stated to tho interpreter that he was tlfty years old; that he had Wen in tho country about seven years and that he first began publishing the ItaA AT* nearly six years ago. Ho had had no previous exjierience as a journalist, and prior to beginning his newspaper bad in operation a job printing oftico, which h<- yet maintained. <>f tho So,ooo charac ters in the Chinese language he eonld make aliotit 8,000, As ho had never been able to import type from China, all the characters in bis paper were formed by hand. The H7iA AV- had 1,000 sub scribers, some circulation in China and was issued at ton rents jier copy or five dollars per year. He got much of his matter from exchanges. What ap |>eared in local English papers of inter est to his readers was translated by an English-knowing Chinese friend. Al though seven years in the country Yee Jenn had no knowledge of tho lan guage; and he said that but about 200 of Chinese residing in this city were able to read and understand English. The latest numWr of the HViA A'.v was presented to tho writer hy Yee Jenn. It was a f<>ur-pgo sheet and hail five columns to a page, the lirst page, ex cepting the publisher's announcements, being occupied by advert is-menta, mainly double-columned. The news matter of the H'.iA AT**, commencing at the right hand colnron of tho fourth page, was four columns of local items, succeeded by a column of "ad's.;" then a department containing news from I'eking, followed hy another containing news from Canton; next an editorial against the use of opium, and then a presentation of the news from various countries, after whieh come advertise ments.— San f'rsscuco /'ml. Printing the Great Cltillser. Until printing was very generally spread civilization advanced by slow and languid steps. Mince the art lias lieoonie cheap it* advances have become unparalleled, and its rate of progress vastly accelerated. It has leon stated by some that the civilization of the Western world has resulted from it* Wing the seat of the Christian religion. However much the mild tenor of its doctrines is calculated to assist in pro ducing such an effect, that religion can but lie injured by an unfounded state ment. It is by the easy and cheap methods of communicating thought from man to man, whieh enable tho country to sift, as it were, its wholo people, anil to produce, in its sciences, its literature and it* nit, not the bright est effort* of a limited class, but the highest effort of the most powerful mind among a whole community. It in this whieh has given birth to the wide-spread ing eivili/atiou of the present day, and which promises a future yet more pro lific. Whoever is ocqnaintcd with the present state of science and tho mechani cal arts, and looks back over tho inven tions and the civilization which the fourteen centuries subsequent to Chris tianity have produced, and compares them with the succeeding four centuries following the invention of printing, will have no doubt as to the effective cause. It is during those last three or four cen turies tliat man, considered as a species, has commenced the development of his intellectual faculties; that he has emerged from a position in which he was almost the creature of instinct to a state in which every step in advance facilitates the progress of his successors. In the first period arts wore discovered by individuals and lost to the race; in the lattor the diffusion of ideas enabled the researches of one claas to unite with tho observations of another, and the most advanced point of one generation Wcamo the starting-point of the next. - Printer*' Circular. \ _ MORAL AND RELIGIOUS. fiiii-iiir. Never forsake a friend. When ene mies gather around—when sickness falls on tho heart - when the world is dark unil cheerless—is the time to try true friendship. Tin y who turn from the scene of distress betray their hypocrisy, and prove that interest only moves them. If you have a friend who loves you who has studied your interest and happiness—be sure to sustain him in adversity. Let him fee) that his former kindness is appreciated, and that his love was not thrown away. Heal fidelity may bo rare, but it exists in the heart. They only deny its worth and power who have never loved a friend or labored to make one happy. The good and tho kind, the affectionate and the virtuous, see and feel the heavenly principle. ICrlliflou* Ni'Wn mid >ods. There are **7 Episcopal churches in London, Reverend Dr. Daniel Mted, a promi nent minister of the Lutheran church, died at Gettysburg recently. There are .'124 Haptist churches with about 20,000 members in Florida, con neeted with which are (100 Sabbath schools. The Mormon missionaries who have 11 n laboring to make converts in Ger many arc about to be expelled from the country. In thirty-seven years the Church of England has erected 2,5*1 churches, and expended on church buildings $200,000,000. Bishop Mhanulian, of Hurrisbiirg, a few Sundays ago in Philadelphia con firmed 1,620 persons, mostly children, who attend five of theCatholie churches in that city. Tho synod of the Reformed Presby terian church (Old Hide; has l>ecn held in Pittsburg, the Rev. T. P. Stevenson being chosen moderator. The receipt* for foreign missions were reported at $12,209. The Methodist Episcopal church, South, reports 3,073 traveling preach ers, a gain of 1 13, and *37, *3l members, a gain of 15,11.7.7. Of these momWrs I,o*l are colored and 4,0*1 are Indians. The collection for missions amounted to $152,762, an increase of 823,04*. The largest conference is the Yirginia, which has 57,06* members, I*o travel ing, 13 superannuated, and 173 local preachers. The twelfth annual rojiort of the Tolugu mission of tho American Bap tist union state* that in connection with the Ongole station there arc thirty three ordained preachers, thirtx unor dained, five colporteurs and eight Bible women. Daring the year twenty-six new churches have leen establish'*! in a* many different village*. The present number of church mcmWrs i* 15,632. Nearly 3,000 were baptized during the year. The statistical report of the United Presbyterian church for the past year snows that there are 704 ministers and *ll eongregations. Eleven eongrega tions were organized and five dissolved. Mission stations are eighty-two, with twenty-six new ones during the year. The total membership is *2,337, a net gain of *l*. Wholo number of Sab bath schools, 76*, a gain of eight. Num ber of scholars, 72,010, a loss of 1,116. Tho total contributions to all purposes is $*53,541, an increase of nearly $27,000; the average per moroWr is 810.74, an increase of thirty one cents. An Alpine Accident. A tourist who recently made the as cent of the Ostler Mpitze, one of the loftiest of the Austrian Alps, deserilies an accidentof which he was tho witness. The party, comprising two tonrists and two guides, were descending, when, the writer says, I heard a shriek of terror from Dangl (one of the guides) which almost unmanned me. Turning my head I beheld Dangl and hi* tourist fly. ing with almot lightning rapidity over s lofty precipice, having been carried off their feet by an avalanche. This falling mass of snow had become de tached above onr heads, and carried the two men liehind ns down an abyss fully 500 feet in depth. It had Wen quite impossible for them to avoid the avalanche, and as they were connected by ropes both were hurled below, ap parently to certain death. Keinatadlor (the other guide) and I made all pos aiblo haste down. We found Dangl lying motionleas and insensible in the snow. He had received a terrible wound on the bead. The tourist escaped with a few bruises and contusions. Rein stadlor and I carried Dangl to the Payer chalet. After a time he was brought to his cottage. His condition is serious, but thbre is ground, I hope, that he may recover. Some Tram ago a bankrupt Michijan editor offered bia creditor* a warrant for 120 aoroa of land in aaliafaction of tbeir claim*, and they refuaod it, pre ferring to take other property rained at $250. Tho deapieod 120 acrea now yield the former bankrupt editor an annual income of fOO.Otft) or more from mi nee. TilK FAMILY DOCTOR. Hi.ekl'. —Although sound slccn in con sidered a thing to be desired, ret no sleep in healthy from which we are not easily roused. PIUITKCTION A'MINHT Kl NHTIK'KR. A piece of silk, which is u non-conductor, worn us n lining of hat or bonnet, is a safe protection nguinst sunstroke. Hot Watch ron thk Hbaut. —ln a letter to the Lanes/ Dr. A. I'nggi r> - cords the following observation: lie states that in Paris ho saw a ease in which, under the inhalation of chloro form, tho heart ceased to beat, and artj llcial respiration for ten minutes failed to restore circulation, when Dr. Labbe (lipped a large cloth in boiling water and applied it to the region of the heart, with the result of immediately restoring the action of that organ. How to Maki a Poi i/rn k. Dr. lirunton, in Hrain , the new London perioilieal, gives the following useful hints on this subject: 'J'lie common practice of making poultices hy mixing linseed meal with hot water and apply ing it directly to the skin is quite wrong, because if we do not wish to burn the patient wo must wait until a great portion of tho heat has been lost. The proper method is to take a flannel bag, the size of the poultice required, to till this with the linseed poultice, as hot as it can possibly be made, and to put between this and tho skin a second flannel, so there shall be at least two thicknesses of flannel 1 Kit ween the skin and the poultice itself. Above tho poultice should be placed more flannel, or a piece of cotton wool, to prevent it from getting cold. JJy this method we are able to apply the linseed meal boil ing hot, without burning the patient, and the heat gradually diffusing through the flannel affords a grateful sense of relief, which cannot be obtained bv other meanH. There are few ways in which such marked relief is given to abdominal pain as by the application of a poultice in this manner. A Stage Coach Robbery in Colorado. One of the passengers on a stage roach which Was halted by a footpad n<-ar Del Norte, Col., t< lis the story of the rob bery as follows: There were eight men and one woman inside the coach, and four men beside* the driver on top. I was among the latter, sitting beside the driver. It was about midnight, I should think, and about twenty miles from Del Norte, when we were halted. It was very dark, and we were just turning a l>end in the road when the word came to halt. There was only one man visible, to the left and al>out ten feet ahead of the coach. The robber was standing behind a piece of canvas stretched alongside the road, and had a revolver pointed directly at myself and the driver. He told us calmly to deliver ourselves and he rm ns, but that if we made would shoot. I was on tho to the robber, ami I im mediately got down from my scat, fol lowed by the driver. After we got down, the robber came from behind the canvas and places! over our heads a cloth cap, which came down to our shoulders and completely blinded us He then ordered ns to stand still, and himself went to the stage door and or dered the occupants to come ont, one at a time, and take their positions in line alongside the driver and myself. He told the passengers not to make any unnecessary movements, as they were all covered hy the guns of his men in concealment, and their lives were in jeopardy. After the passengers were all in line, ho put caps similar to mine over their faces, tied their hands behind their bocks, and then proceeded to rifle their pocket*. He took nothing but money. Everything else he would replace just where he got it from. Ido not know how much money he got. From me he got about 8140, which he took from my pockotbook, replacing tho porketbook after taking tho money out. He hod a light burning in front of the canvas, liehind which was a re flector, which shed the rays directly in onr faces. He occupied about fifteen minutes in the search. He then ordered as to kneel, which wo did, all in a row, and then he proceeded to rifle the mail bags. The woman, at his bidding, held tho light for him while he did this. He opened only two sacks, I believe. He kept us kneeling al>out half an hoar. He kept talking a)l the time, using good language. In fact, during the whole time of the robbery he or as very gentle manly. He had a soft, mellow voice. He was not nervous or quick, l>nt did the work in m businesslike manner. He was a man nearly six feet in height, smooth face, had a heavy, light mustache, and wonld weigh perhaps 165 ponnda. He had on a dark hat and coat, and was not disguised in any way. After he had robbod the mail he skipped off into the darkness. When we found he had left we removed our caps, untied each others' hands, picked np the remnants of the mail bags and the mail, and pro ceeded on to Alamosa. It is my opinion now that lie did the work alone, and that his comrades being in the boshes was all a hoax. FOR THE CERIODH. It in said that white <*t with blue '7' i are always deaf. According to I>r. Gnnther there are <,OOO h]iwi W of flab now known to men of science. According to Aristotle. large cars are an indication of imlMw-ility, while small ones announce madm-sit. Among the Indiana near the Amanon there are are no worda for number*, and a similar want of arithmetical jtower. The Greeka considered jnry>l<- and white flowera moat acceptable to their dead. Jtibbona and lock aof liair were alao o lost. A fabulous story of the manufacture of glass is that the I*raelites set fire to a forest, and the heat, becoming in tense, made the nitre and sand melt and flow along the mountain side, where it cooled a* glass. The influence of a change of food on animals i* shown in the case of amphid irorous flies, that are larvic for eight or ten oys. The habit* formed of early rising, constant employment of body or mind in a useful way, economy, truth fulness, honesty and virtue, are just wliat are needed to make sterling, go ahead, successful men in all deport ments of life. A gentleman sent the following letter to one hundred men, standing at the head of financial, oommerc.al. profes sional ami educational interests of an ]lastcrn city: Mr I)kak Hih I desire to find out, for the benefit of the boys, how the leading men of this city spent their boyhood. Will yon be kind enough to tell me: 1. Whether your home for the first fifteen years of your life was on a farm, in a village or in a city, and 2. Whether yon were accustomed during any part of that period to en gage in any kind of work when not in school ? I should bo glad, of eonrse, to have yon go into particulars as fully as yon are disposed to do; but I do not wish to tax your patience, and I should lie greatly obliged for a simple answer to these two questions : Eighty-eight replied. Of these eighty-eight men twelve spent the first fifteen years of their life in the city, twelve in villages and sixty-fonr were farmers' boys. But of the twenty-four who lived in villages and cities one fourth were practically fanners' bov*, for they lived in the vicinity and did the work of farmers' boy*. One of these village boys said: " I learned to hoe, dig and mow, and to work whether I liked it or not. 1 went to school in winter, and wrought nights and morn ings for my board." Another said. *• 1 used to work away from home on s farm in the summer and fall. In the winter, when going to school, we three boys used to work up the Vood for win ter use." This was the story of others. So that seventy out of eighty-eight— four-fifths—had farm-life training. Did the few boys on the city list have an easy time T One studied law when ont of school. He had not mnch play. The others were poor boya, children of the working classes, in needy circum stances, accustomed to hard work from their earliest years. One said be was " generally em ployed in summer months and dnring vacations in doing any work that of fered." Ponr were newsboys. One said " the last of connection with the press he earned one hundred dollars be fore breakfast." Another, that "be paid his own way siaee eight years of age, without any assistance except board from my eighth to my eleventh year." Where are the boya to-day who wer* at the same time going to school and amusing themselves t Where are they ? We know who the ninety-six per rent, of successful business men were—farm ers' boys, or poor and hard-working town boya