Imi-regnated Whitefish Egg, 24 Hours after Taking, 



A -Germinal Disc, showing Segmentation. 



B - Laver of Oil Globnles. 



C — Yolk .Sac. (Magnified 2i diameters.) 



While Fish Egg - IJnimpregnaied - 24 hPurS 



Unimpregnated WniTKFisH Vja:, 24 Hours after Takim 



A— Germinal Disc, Segmentation not having taken place. 



B — Laver of Oil Globnles. 



C_Yoik Sac. (Magnified 21 diameters.) 



