Quarterly journal of microscopical science . follicle is only put in below. Pig. 5. Pari of the egg at an early stage of yolk formation, as infig. 4, c. Cortical vacuoles and deeper yolk formations are shown. M 111 2 496 J. BRONTE GATENBY Fig. 6.—Part of the testis of Ornithorhynchus. For description seep. 492 of text. Plate 14. Figs. 7 and 8.—Two of the youngest oocytes or Ornithorhynchus,showing sphere and mitochondria. Fig. 9.—Edge of young egg showing relationship of follicle to cell(oocyte) membrane. Fig. 10.—Egg at time of formation of pre-zona (pz) follicle, one-layered. Fig. 11.—Later
Quarterly journal of microscopical science . follicle is only put in below. Pig. 5. Pari of the egg at an early stage of yolk formation, as infig. 4, c. Cortical vacuoles and deeper yolk formations are shown. M 111 2 496 J. BRONTE GATENBY Fig. 6.—Part of the testis of Ornithorhynchus. For description seep. 492 of text. Plate 14. Figs. 7 and 8.—Two of the youngest oocytes or Ornithorhynchus,showing sphere and mitochondria. Fig. 9.—Edge of young egg showing relationship of follicle to cell(oocyte) membrane. Fig. 10.—Egg at time of formation of pre-zona (pz) follicle, one-layered. Fig. 11.—Later stage, zona formed, follicle two-layered. Fig. 12.—Follicle and part of egg at stage little later than in fig. 10,showing pre-zona substance apparently within follicle wall. Two layersof nuclei just forming in follicle. Fig. 13.—Detail of later egg, showing membranes. Mitochondria at m. Fig. 14.—Cortex of later egg showing arrangement of layer beneath thezona. Quart. Journ. Micr. Sci. Vol. 66, , PL ./- fU* UAL --. 2. 3.
Size: 1740px × 1436px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1850, bookpublisheroxfor, bookyear1853
