The mechanistic conception of life : biological essays (1912)
Loeb, Jacques, 1859-1924 · Chicago, Ill. : University of Chicago Press · leaf 18
P C7 … Fig. 1 Fig. 2 Fig. 1.—Unfertilized egg of the sea-urchin surrounded by spermatozoa. Onlythe heads of the spermatozoa are drawn, since at the magnification used the tailswere not visible. Fig. 2.—The same egg immediately after the entrance of the spermatozoon.The egg is surrounded by a larger…
