. The embryology of the honey bee. Honeybee; Bees. THE EMBRYOLOGY OF THE HONEY BEE 17. CC Fig. 6. Tranverse section of anterior end of egg of Stage II, showing cleavage cells (CC) x 243. joined more closely together than those situated further caudad; the latter present by comparison a scattered and somewhat at- tenuated appearance. This difference is plainly evident in figures II and III (cf. also Figs. 7A and 7B). Moreover, although all the cells in the egg are of the same age those in the posterior portion are retarded in development in proportion to their dis- tance from the anterior end,
. The embryology of the honey bee. Honeybee; Bees. THE EMBRYOLOGY OF THE HONEY BEE 17. CC Fig. 6. Tranverse section of anterior end of egg of Stage II, showing cleavage cells (CC) x 243. joined more closely together than those situated further caudad; the latter present by comparison a scattered and somewhat at- tenuated appearance. This difference is plainly evident in figures II and III (cf. also Figs. 7A and 7B). Moreover, although all the cells in the egg are of the same age those in the posterior portion are retarded in development in proportion to their dis- tance from the anterior end, and since they reach their destina- tion in the cortical layer later than those situated anterior to them, a handicap, so to speak is placed on the posterior region of the egg, from which it is slow to recover. This condition has also been noted by Carriere and Burger for Chalicodoma, but is entirely ignored in Dickel's account (1904). Marshall and Dernhehl also make no mention of it in the case of Polistes, nor does it appear in Lasius (Henking). As the number of cells continues to increase the pyriform figure grows both in length and diameter until it finally touches the cortical layer of the egg at one or more points. The point where the cleavage cells first actually come into contact with the periphery of the egg is usually situated on the ventral side, one-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Nelson, James Allen. Princeton : Princeton University Press
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectbees, bookyear1915
