Show I rI rI r I I NEWEST THINGS IN INI I SCIENTIFIC WORLD The megaphone invented by a Boston Boston Doston Bos Dos ton doctor is formed on the theory I that the rams ram's horn Is the technically correct shape for tor the best sound About 90 per cent of the oil absorbed by waste or rags used in wiping maI machinery machinery ma ma- chinery is recovered by a c centrifugal machine that an Englishman has in In- In I vented Mixtures l of ot air and vapor from ben ben- zol petroleum or alcohol are used in a anew anew new blowpipe invented in Europe According to a London eye specialist special special- if It white clothing f for r infants were abolished In a generation there would be a 20 per cent decrease in the number number number num num- ber of ot persons with defective vision S A Av Connecticut inventors inventor's musical instrument has a single violin string of ot more than usual length ant and is played with a bow while held between the knees an aluminum horn amplifying amplify amplify- ing the sound A Dutch inventors inventor's telephone that is scarcely larger than a u. Lead pencil de depends depends depends de- de upon the heat generated in a apiece apiece apiece piece of ot platinum wire wIn oy ny electricity to produce vibrations that transmit messages |