. The pigmentary, growth and endocrine disturbances induced in the aunran tadpole by the early ablation of the pars buccalis of the hypophysis. as fixed by dropping into Hellys fluid 101 days after the operative diet. X226. 14 The pigmentary system of a 43 albino frog tadpole, standard environ-ment. Fixed by dropping into Hellys fluid 101 days after epithelial hypophy-sectomy. Liver diet. X226. 15 The pigmentary system of a 10-mm. (total length) normal frog tadpole,standard environment. Dropped into Hellys fluid 22 days after the operativestage. Liver diet. The epidermal melano
. The pigmentary, growth and endocrine disturbances induced in the aunran tadpole by the early ablation of the pars buccalis of the hypophysis. as fixed by dropping into Hellys fluid 101 days after the operative diet. X226. 14 The pigmentary system of a 43 albino frog tadpole, standard environ-ment. Fixed by dropping into Hellys fluid 101 days after epithelial hypophy-sectomy. Liver diet. X226. 15 The pigmentary system of a 10-mm. (total length) normal frog tadpole,standard environment. Dropped into Hellys fluid 22 days after the operativestage. Liver diet. The epidermal melanophores are just appearing. X226. All the drawings of the pigment cells (figs. 13 to 23) were made from skin wholemounts taken from the dorsal region of the body. * The total length of the specimen is shown by the first figure, the hind-leglength by the second. ^ In the pigment cell drawings the most superficial layer is shown on the left,the deepest on the right. From left to right they are in order, (a) the layer of freeepidermal pigment, (b) the layer of epidermal melanophores, (c) the xantholeuco-phores, (d) the deep melanophores. 116. 13 p. .\/^: f I- ,...-. - ;^,\r .-;=.^..- _ . , ■■ -■:^^^?!>^^-^^ fe^a»t<sfc?yiji^-- ,^ ^ 5 1 ! t : \- - • :- ^-^^-.^ -,-V-^ ■. 14 \-;-;;
Size: 1756px × 1423px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectfrogs, bookyear1920
