51 PLANT LIFE IN YEAR 2000 THREATENED by EXHAUST By Dr. R. A. Wood The major problem by the year 2000, as far as plant life is concerned, may be caused by chemical reactions created when motor vehicle exhaust ingredients are exposed 10 sunlight. ' Sunlight triggers a chemic- al reaction among exhaust mixtures and creates air pol- lutants called photochemicals. Compounds orlginating from industrial sources may also react in this manner. Such photochemicals pol- lutants will increase three. fold by the year 2000, caused by gases developing mainly from hydrocarbons and oxid- es of nitrogen. By the year of 2000 over 87 million pounds of hydrocarbons and oxides of nitrogen wlll be emitted into the atmosphere annually from motor vehicles alone. Ironically, if all motor ve- hicles were powered by bat- {eries, the increasd electricity needed to charge the batter- ies would at least double the present air pollutlon from coal-burning generators used to make electricity. In short, one form of air pollution could replace another. The damage to trees and other vegetation from photo- chemicals can be more severe than with most other air poi- lutants, he states. The most serious air pollutants now in- jurlng trees and other vege- iation are sulfur dioxide, fluoride, ozone, and a gas known as PAN (peroxyace- tylnitrate). The latter two are photochemical air pollu- tnats. Fluorides are increas. ing in the atmosphere, and are the most toxic to plants of all air pollutants. Fluor- ides origlnate from impuri- ties in raw materials used to make aluminum, steel, oil, brick, and pottery—as well as from rocket fuel combus- tion. Ozone, one of the most harmful photochemical air pollutants to plants, origin- ates in polluted atmospheres. Oxides of nitrogen, emitted into the atmosphere by mo- tor vehicles and a variety of industries and utilities, react in the presence of sunlight and oxygen to form ozone. PAN, another photochemical air pollutant harmful to the plants, resudts from similar reactlons between hydrocar.- bons and oxides of nitrogen. BEST BEEF CATTLE GAINS BOTH RAPID AND EFFICIENT By Lowell L. Wilson Beef cattle with the genet- ic ability to gain rapidly also have the ability to gain effi- ciently. Sixty per cent of the dit- ferences in weight gain with- in a group of cattle fed in the same feedlot are due to genetics. A progeny test is the ‘acid test” of a bect bull's true ability to produce fast-gaining, meaty, quality calves. In progeny testing, a bull to be evaluated is bred to a random group of cows. Then the live and carcass qualities of the bull's calves are assessed. He averaged the results of numerous research trials at Pern State and other univer- WANTED Country Places homes with large lots, and small and large farms for } waiting city buyers who often pay more than local buyers. TO SELL NOW PHONE 3594-3763 Stanley M. Wentzel REALTOR 401 WEST ORANGE ST. LANCASTER, PA. 17603 17-tfe | sities and found that one- tenth pound-per-day - increase in a beef cattle herd’s ability for rate of gain: could save 35 pounds of feed for each 100 pounds of weight added in the feedlot. Such superlor cattle can mean a saving of $6,420 for of cattle. Studies by other Agricul- tural Experiment Station sci. entists at Penn State have found that the carcass traits of cattle, the meatiness of the rib eye area and the eat- ability of meat, are at least as highly heritable as welght feed, interest, labor, and oth. gains. cr feedlot costs for 1,000 head Certain other factors are not as strongly determined by inheritance as carcass traits and post-weaning weights gains. For example, weaning weight is only 30 per cent heritable. Yearling weight is 45 per cent heritable while live conformation is 35 - per cent heritable. Patronize Our Advertisers ; Cold, drafty, wet farrow- Ing pens cause troubles wii baby pigs. This is why_ abou. one-third of all pigs born never reach market, The hig: death rate among baby pis. can often be reduced by goorl management, says Lester J Burdette, extension livestoc’ specialist at Penn State un! versity. Ten cnnit i — OUR BIGGEST BARGAIN — AT ~~ JANES DRESS SHOP 63 SOUTH MAIN STREET MANHEIM, PENNA. DRESSES, sizes 5 to 15, 6 to 20, 12%2 to 24": FEW KNIT SUITS, Half Sizes .. . = Reg. 17.95 to 34.95 NOW $10.00 to $20.00 to 54.95 NOW $35.00 || EE —————— —r— SUITS AND VEST'SETS ........ ... ... Reg. 31.95 to 62.95 NOW $520.00 to $40.00 Some have matching slacks SKIRTS AND CULOTTES ..... Req. 7.00 to 14.95 NOW $4.00 to $9.00 EE — SLACKS i .. 0% OPETSWEATERS . ............ 20% OFF COATS AND CAR COATS By WEATHERBEE™ .. ...... ..... ....o.... 20% OFF | JACKETS, LEATHER & SUEDELEATHER". . ......... cine ieee iin 20% OFF ||| LARGE GROUP SLIPPER SHOES EXTRA SPECIAL’! Req. 3.00, 4.00 and 5.00 NOW $1.50, $2.00 AND $2.50 GROUP OF NYLONS 50c PAIR - Reg. 1.15 to 1.35 ALL WINTER NIGHTWEAR FOR JAMBOREE SALE ...... ...... . 1 ... 20% OFF ii INCLUDING HOUSE COATS i | EXTRA SPECIAL!! , EXTRA - SPECIAL! WEATHERBEE COAT All Wool MAIDENFORM BRAS | Checked one size 10 and one size 14 Sizes 32 to 42 A, B, and C cup Reg. 49.95 NOW $15.00 GROUP HALF SLIPS to 5.00 — $1.00 1 SUEDE CLOTH WEATHERBEE VINYL SKIRTS . $1.00 Orlon pile lined, Coat size 14 Reg. 54.95 NOW $20.00 | ALL WEATHER TRENCH COAT Size 12 - Req. 35.00 NOW $10.00 2 Multi Color SUEDE LEATHER JACKETS Zip-out lining, Sizes 12 & 14 59.95 NOW ' PRICE GIANT PLAYTEX SALE $2.00 Off on Magic Contro ler Girdles with Finger-Tip-Control Styles Nos. 2715 - 2716 - 2717 - 2718 - 2725 2726 - 2727 and 2738 PLAYTEX LYCRA GIRDLE $2.00 Off Firm ‘N Flatter Styles Nos. 2850-51 - 2852 - 2854-55 PLAYTEX BRAS Regular or Long Line - Selected Styles 66¢c to $1.00 Off MANY, MANY, OTHER ITEMS GREATLY REDUCED INCLUDING JEWELRY AND LOLLIPOP STRETCH PANTS: JAMBOREE TICKETS WE GIVE FEW VINYL VEST SUITS 13.95 NOW $5.00 GROUP HAND BAGS GREATLY REDUCED ys —— my g— 2 LEATHER ZIP-OUT JACKETS Sizes 10 and 14 Were 59.95 NOW ONE-HALF PRICE MAIDENFORM SALE Concertina Girdles WITH ACTION BACK Regular 9.00, 11.00 and 12.00 NOW $7.39, $8.99 and $9.99 3 em——— ro — — ALL STYLES a ———— same TRICK-O-LASTIC BRAS NOW $3.19 and $3.99 Req. 4.00 to 5.00 — UNDERLINE BRAS Perm Press - Reg. 2.50 NOW $1.99 — =n x wa «rw we uF wr
Significant historical Pennsylvania newspapers