. Bihang till Kongl. Svenska vetenskaps-akademiens handlingar. Science; Botany. a., primary amniotic cavity. e., ectoderm of the Pluteas. ed., ectodermic disc. h., hydrocoele. o., exteriör opening. s., stone-canal. st., stomach of the Plåtens, c, ciliated band. confess that I never found the pouch-like invagination com- pletely closed. The hollow, which may properly be named >:>the primary amniotic cavity», has thin walls except as regards its floor which remains very thick. The floor, also called oral disc by MacBride, which is destined to be transformed into oesophagus, nervous ring et
. Bihang till Kongl. Svenska vetenskaps-akademiens handlingar. Science; Botany. a., primary amniotic cavity. e., ectoderm of the Pluteas. ed., ectodermic disc. h., hydrocoele. o., exteriör opening. s., stone-canal. st., stomach of the Plåtens, c, ciliated band. confess that I never found the pouch-like invagination com- pletely closed. The hollow, which may properly be named >:>the primary amniotic cavity», has thin walls except as regards its floor which remains very thick. The floor, also called oral disc by MacBride, which is destined to be transformed into oesophagus, nervous ring etc, is at lirst rounded in shape but subsequently acquires a pentagonal form. I prefer to call it solely »ectodermic disc». The hydrocoele, being almost. 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 Kungl. Svenska vetenskapsakademien. Stockholm : K. Svenska vetenskaps-akademien
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, booksubjectsc
