task which is imposed upon and conversely. This law is confirmed by the phenom- it. In a second and more lasting form ports it on the ground. ena of moving pictures. Bright and strongly-illumin- Before erecting the pole a rope ladder with a shield of the malady, this retinal adaptation ated images… … is likewise armored. The ladder The evil is not very great; it is of the telescopic type, and can Fig. 4.—Three-section observation ladder. suffices to recognize its existence. be expended and collapsed by Those persons whose eyes are means of a tackle. It is equipped with a top seat, there are…
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