## Abstract Anuran (__Rana__) and urodele (__Ambystoma__) amphibian eggs were subjected to prolonged unnatural orientations in relation to gravity. In some cases eggs were rotated 90Β°, while in other instances eggs were rotated 180Β° (complete inversion). Alterations in the pigmentation pattern, cle
The location of the basis of the amphibian embryo
β Scribed by Albert C. Eycleshymer
- Publisher
- John Wiley and Sons
- Year
- 1898
- Tongue
- English
- Weight
- 693 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0362-2525
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
An experimental study of the avian egg has led me to examine the following points : I . T h e location of the embryo in the material of the unincubated blastoderm. 2. T h e direction of growth before, and after the appearance of the primitive streak. T h e origin of the material from which the lat
cellular cement serve more purposes than merely that of binding cells together." Robert Chambers ('40). The question about the function of the surface coat covering the amphibian egg was first emphasized in the very comprehensive study of Holtfreter ('43a). Several important functions were attribut
## Abstract Concanavalin A exerts a reversible inhibition upon gastrulation and neurulation in the amphibian embryo. This inhibition depends on concentration and is attenuated when the embryonic capsules are left intact.