THE DEVELOPMENT OF THE SQUID.

LOLIGO PEALII (LESUEUR).

Fig. 4

	More highly magnified view of the growing edge of the blastoderm of the egg shown in figure 1 after staining with osmic acid and borate of carmine; a, unsegmented yolk; b, segmentation pyramids; c, first row of cells, which have been formed by a separation from the ends of the pyramids; d, second set of cells, which have been formed by the division of cells like c; d', third set similar to d; d", fourth set, similar to d, and d'