Two series of observations ings are continuously lu- with the spectrum photo- bricated by a mechanical meter follow. In the first device. The cylinders are series the absorption of cooled by water, which is various rays of the solu- continuously pumped tions (suitably diluted) is through a radiator… … second. The driver sits Fig. 2.—The automobile hoe turning. lateral radiation from red in the center of the ma- solutions (containing chine and steers by means green particles) was maxi- of a Galle chain connected mum for wave lengths be- with the front pair of tween 560 and 570/ijt. In wheels. But…
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