machines most without exception each egg developed into swim- of Lilienthal and Pilcher, but to descend gradually in a series of aerial jumps, as it were. Gravity is the ming larvae. With such simple means as a weak solu- power-giving motion, the motor simply exercising tion of vinegar acid and a… … When the aeroplane was (Continued on page ^82.) THE LABORATORY IN WHICH PROF. LOEB'S DISCOVERIES HAVE BEEN MADE.
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