Show Do You Know Know- J jj vented A Swedish metallurgist h has j a process to aluminum plate iron w 4 iJ Paraffin wax wax- the petro Petroleum b brt bj product formerly 7 considered of It h bit value as a lubricant has been font to have in it the element noSS sired by oil on chemists in their mc most A desired de- de for a n perfect lubricant About 60 pe per 5 cent of t the visitors to Yellowstone national park are TO men men v o. o There 4 are arc clocks in Ii w and Buckingham palaces palace 4 j jAn I IAn An eJ of average one out of lobsters hatched reaches nt- nt i iThe 5 The i population of Sc Scotland land h hu decreased 8 per cent in the years pat past M 10 i i t j The wheelbase of an n I Is measured from the center of the 1 axle front axle to the center of the r j 11 Storks which are regarded as i sanitary asset in Holland are arc de creasing In number due It I is old to their eating poisoned pers while wintering In lit Souti Africa t i. i Precious stones are composed ol r CI very sery simple elements clements An opal f Instance is flint and water the blue of the sapphire Is the chem then ical leal action of one grain of iron irca w os' os too of j I hei Fish sh have so keen a seme en of hear Ing that they can hear sounds rounds t U i low Jow those audible to the human ean W and a n little higher hiher than the high highest est eat notes of a n. violin f 1 A new radiator for heating room roomI I 1 Is- Is Isso so compact that It extends extend onlia a few inches from a wall and is de f e signed to be installed close to a floor where it will be most efficient j jIn In the salt mines i at there are altars shrInes M Id statues made of saiLA salt saiL i iA A monument to the ho horses s served during the war has I KO erected in Berlin i I. I the lightest wood to mar man is found almost anywhere lathe la In the tropics The wood half as as ns cork weighs only five to jewa pounds to the cubic foot under a microscope lt its structure re n resembles that of a honeycomb A volt olt X-ray X tube tub hu bS been perfected at the California B 15 of Technology J l |