_~lii~erc~tri~g; ;;i f'atta,_`v WEATHER Icareful "study _ of the thermometer has shown that "Cent of the temperature-'of London froth fortyzfive to thirty two degrees generallY / kills,. about three ' hundred . persons. ° They may not all die-in the very week When the loss of Warmth hikes place, but the number of deaths is found to in crease to that, extent over, the, previous average within a short_.period after the change. The fall 'of 'temperature in truth, kills them as,certainly. as a=well aimed cannon shot: Oil' changing cli mate, or deficient fecal_ and shelter,. has weathered themlor , the final stroke,' but they actually die atlast of the • weather.' Instead of a Werra sttinmsr being folio•' wed by a bold winter, the tendency of the-law of the weather is to group, warm seasons together and cold seasons together. Mr. llasier has made out that the character of the weather seems to follow certain curves; so to speak, each extending over of fifteen years. During the,first halt of each of these periods the seasons become warmer and warmer till they reach their . warmest point, and then they sink again, becoming colder and colder, and colder till they reach the low est point, whence they rise again. His tables range over the last seventy-nine years—from 1771 1849. Periods shown to be the coldest' were years memorable for high priced food, increased mortali ty, and popular discontent, and political changes.-,-Dickens' Household Words Hew TO GET TO SLEEP.—How to get to sleep is, to many persons, a matter o highimportance. Nervous persons, who aro troubled with wakefulness and excitability,usually have astrong tenden cy of blood to the brain, wiih cold ex treinities. The pressure of, blood on the burin keens it in a stimulated or wakeful state, and the ,pulsations in the head; are often painful. Let such rise and chafe the body and extremities with the hands, to promote circulation, and withdraw the excessive amount of blood from the brain, and they will fall asleep in a few moments. A cold bath, or sponge bath, and rubbing, ore good run, or rapid walk in the open air, or going up and - down stairs a few times, just be fore retiring, will aid in equaliling circa fation—and prothoting sleep. These rules are simple, .and easy of applica tion in castle or cabin, and may Minister to the comfort of thousands who would freely expend moneyfor an anodyne to promote "Natu're's sweet restorer, bal my sleep." SUPERSTITIONS REGARDING FRIDAY:* It is strange, that Priori)/ is regarded, in all countries,as a peculiar day. In Eng land it is generally considered unlucky; and. many- people-will-not commence any undertaking on that-day: and most sail ors believe that the vessel Is sure to- be wrecked that sails on Friday. it riage takes Place on that day, the old ! rives snake their heads and , predict all kinds of misfOrtunes to the bride and bridegroom : Nay, the3r even, go so fur as to pity all children who are so unluck yasto be born on Friday. In Germa ny, on the contrary, Friday is consider ad. a lucky - day for weddings, commen ting new undertakings, qr other memo rable events; and the -reason of this su perstition is said to be the ancient belief, that the witches and sorcerers held their weekly meetings on this day; , and of ouree, while they Were amusing them selves with dancing, and riding on broom sticks around the Blocksberg, they could have no time to work -any.evil. Tut Ham.—Each hair is a tube, con taining an oil, of a color similar to its own. Hair contains at least ten distinct substances: sulphate of lime and mag nesia, chlorides of sodium and potassi turn. phosphate of lime, peroxide of iron, silica, lactate of ammonia, oxide of man- gan - ese-an -margaitn-Of-t hesesu I phur, is the most prominent, and it is upon this that certain metallic salts operate in ' changing the color of the hair. Thus, ,when the salts of lead or mercury are applied, they enter into combination with the sitlplier, and a black sulphuret of the trietat-is - formed. A common formula for a paste to dye the hair, is a mixture of litharge, placked lime, and blearbo nate of potash. Black hair contains iron and .manganese and no magnesia; while fair hair is destitute of the two first sub stances, but possesses magnesia, THE WONDERS of : NATURE.—There is a tree called the Machaneel, in the West Indies;its appearance is very at- Menke; and the wood, of it peculiarly. beautiful: .It.bears an apple,.resembling a golden. pippin. • This fruit looks very tempting, and smells very fragrant, but to eat it is instant death, and its sap or juice is so poisonous, that if a few drops fell on the skin, it raises blisters, and oc casions great pain.. The Indians dip their arrows in Itsjaice to poison their enemies when they wound them. Prov idence has so appointed, hower.n,that one 43f these is never found, but near it grows a white wood, or a fig tree, the juice of either of which, it applied in time,' is a remedy for.the &scan , produced. ASSMCETWA.—This article is obtained from a large umbelliferous plant growing in Persia. The root resembles a large parsnip externally, of a black color on cutting it traversely, the asirikmida; ex udes in form of a white .thick juice, like cream, which; from exposure to the air, becomes yellower and yellower, and at . last of a dark brown color ! It is very apt to run in putrefaction; and henco those who collect it carefully,• defend • it '+' from-the sun. The fresh - Juice has no excessively strong smell, which • grows weaker and weaker upon keeping; a single drachm, •of the fresh fluid smells - more than a hundred pounds of the dry assokeetida brought to us.—Scientific American. .... GREAT ' , 141S AND LONGEVITY OF TREES. —Wo learn from a late number of the North American Review,' that there are three cypresseiin`Meirico,whose ages ye. ry frorn 2,890 to 1,,p2} years, at the min- ~ imum estimate of „ `”ntifiecalculation ; at the maximarn,-from 480 to 5,12-1 years I almost coeval with th creation. • ' These' calculattons ara based pon inspection of • the - layers' of.'wood, as .compared 'with, the,known age and- relative growth of smaller trees of tho name species. The`. girth of the cypress of Montezuma is 4l lef44— That. o 1 the giant cypress of -San