The mechanistic conception of life : biological essays (1912)
Loeb, Jacques, 1859-1924 · Chicago, Ill. : University of Chicago Press · leaf 217
Fig. 51 Fig. 52 Fig. 53 Fig. 54 Figs. 51-54.—Cell-division in a sea-urchin egg, Strongylocentrotus purpura-tus, in normal sea-water. This type of cell-division leads to the formation of oneembryo from an egg. M is the fertilization membrane, P a layer of colloidalsubstance which seems to serve the…
