The Visual Acuity of the Frog (Rana pipiens )
โ Scribed by A.-C. Aho
- Publisher
- Springer
- Year
- 1996
- Tongue
- English
- Weight
- 407 KB
- Volume
- 180
- Category
- Article
- ISSN
- 0340-7594
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Cn?icrdn FOUR FIGURES This study was undei-takcn by tlie first-named autlior as part of a eomparatire investigation of the vnseu1arit~-of the hypophysis in representative vertebrates. A s circumstarices
Although the anuran pronephros has been the subject of numerous investigations, its entire developmental history has never been worked out in a single species. The average textbook account can readily be noted to have been assembled from studies on a number of forms. The present account, dealing wit
## ONE FIGURE Although there are several reports (Harris, '46 ; Barth, '47, '50) of phosphatase activity of preparations from frog eggs, there appears to be little known about the phosphatases in the tissues of the adult frog. Ponz ('46, '47) has recently reported the presence of glycerophosphatas
Small crenulated erythrocytes appear in the circulation of Rana pipiens during metamorphosis, increase in number as metamorphosis proceeds and gradually lose their wrinkled appearance. At the end of metamorphosis the entire red cell population has been replaced by these new cells. Thyroxine induces