. The biology of the frog. Frogs. Fig. 25. —Sagittal sections through two embryos. In A the blastopore is overarched and there is the beginning of the proctoda^um or anal invagi- nation. In B the proctodDeum has met and fused with an evagination of the archenleron. ^, anus ; /-'Z?, forebrain ; //Z^, hindbrain • /./'liver diverticulum; MZ?, midbrain ; yV. notochord ; A'/-, neurenteric canal; %' P'"°';'«^''^um ; PH, pharynx; PN, pineal body; PT, pituitary body. (From Morgan, after Marshall.) ^ 1 :i 105. Please note that these images are extracted from scanned page images that may have been
. The biology of the frog. Frogs. Fig. 25. —Sagittal sections through two embryos. In A the blastopore is overarched and there is the beginning of the proctoda^um or anal invagi- nation. In B the proctodDeum has met and fused with an evagination of the archenleron. ^, anus ; /-'Z?, forebrain ; //Z^, hindbrain • /./'liver diverticulum; MZ?, midbrain ; yV. notochord ; A'/-, neurenteric canal; %' P'"°';'«^''^um ; PH, pharynx; PN, pineal body; PT, pituitary body. (From Morgan, after Marshall.) ^ 1 :i 105. 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 Holmes, Samuel J. (Samuel Jackson), 1868-1964. New York Macmillan
Size: 1441px × 1735px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectfrogs, bookyear1916
