Page:Popular Science Monthly Volume 91.djvu/883

 Popular Science Monthly Curing Soldiers' Wounds with Granulated Sugar

DESPITE the terrific fighting in the present war there will not be so many one-armed and one- legged men as there have been in past wars. The reason rests with the surgeons and the methods of treatment given the wounded. Dr. Alexis Carrel has been doing some remarkable work in France. He has made an effective antiseptic from sodium hypochlorite and boric acid. But for real ingenuity credit has to be given to Dr. Erich Meyer, of Ger- many. He has cured wounds with sugar.

After washing out the wounds he has dressed them with ordinary granulated sugar covered with a compress, renewing the sugar every second or third day. This simple treatment, according to Dr. Meyer, has been notably successful. In a number of instances amputations have been pre- vented because the wound was sugar-cured.

This New Furnace Burns Soft Coal and Cleans Its Own Radiator

IN view of the coal shortage and the ne- cessity of burning more soft coal than ever be- fore for heating apart- ments and private houses, a new furnace that has a self-cleaning radiator which does not become clogged with soot is timely. By means of a diving flue the soot is deposited in the fire chamber be- fore it has a chance to enter and stop up the flues. The radiator may also be used for burning hard coal, coke, or wood. The furnace is so con- structed that it may be used for either a single register or pipeless fur- nace, or with the radi- ating pipes. It has the up-to-date appliances for humidifying the air and securingcleanliness and ventilation.

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���A type of car used for calibrating water current meters for measuring the velocity of running streams

���Construction of the new self-clean- ing furnace. It may be used with single-register or radiating pipes

��Calibrating Water Current Meters Which Measure the Flow of Rivers

THE little railroad shown in the pho- tograph above is not for the purpose of joy-rides for school-boys, as a youngster might think at first glance. It is a conveyor for an instrument of large name and im- portant purpose, which is used to calibrate water current meters, instruments used by civil and hydraulic engineers for measuring the velocity of the water flowing in rivers and open channels. These velocity meas- urements, in connec- tion with the cross- sectional area of the stream at the point where the velocity measurements are taken, are used for computing the quan- tity of water being dis- charged by the stream in a given time. Such statistics are necessary in many engineering projects, such as water power development, ir- rigation and flood prevention.

Hundreds of such calibrations are made annually by the United States Geological Sur- vey, the United States Reclamation Service and other branches of the Government.

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