. Reptiles and birds : a popular account of the various orders; with a description of the habits and economy of the most interesting . Fig. 5.—Development of the Tadpole. 1. Epg of the Frog. 2. The Egg fecundated, and siuTounded bj^ its visicule. .3. First state of theTadpole. 4. Ajipearance of the breathing gills. 5. Their development. 6. Formation of the hindfeet. 7. Formation of the fore feet, and decay of the gills. 8. Development of the lungs, andreduction of the tail. 9. The perfect Frog. a female can produce from six to twelve hundred eggs eggs are globular, and are in fo
. Reptiles and birds : a popular account of the various orders; with a description of the habits and economy of the most interesting . Fig. 5.—Development of the Tadpole. 1. Epg of the Frog. 2. The Egg fecundated, and siuTounded bj^ its visicule. .3. First state of theTadpole. 4. Ajipearance of the breathing gills. 5. Their development. 6. Formation of the hindfeet. 7. Formation of the fore feet, and decay of the gills. 8. Development of the lungs, andreduction of the tail. 9. The perfect Frog. a female can produce from six to twelve hundred eggs eggs are globular, and are in form a glutinous and trans-parent spheroid, at the centre of which is a little blackishglobule ; the eggs float, and form like chaplets on the surface ofthe water. All who have observed the small ponds and ditches in thecountry at this season, will have seen these light and elegant TADPOLE OF THE FEOG. 23 crafts swimming on tlie surface of the water. After a few days,more or less according to the temperature, the little black spotwhich is the embryo of the egg, and which has developed itselfin the interior of the glairy mass whi
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Keywords: ., bookcentury1800, bookdecad, booksubjectbirds, booksubjectreptiles
