. The infancy of animals. Animals. <:^ft^©i course; but there is one curious point of difference in the distribution of the eees, which seems to have no meaning, but may be fraught with much. In the frog it will be re- membered these are laid in great shape- less masses ; in the toad they are shed in a long glassy rope which is twisted about the stems of water- plants. There must be a meaning, some advantage to the species, behind this, but so far no one seems to have had the curiosity to search out the meaning of the riddle. For the sake of what is to foUow a brief outline must now be give
. The infancy of animals. Animals. <:^ft^©i course; but there is one curious point of difference in the distribution of the eees, which seems to have no meaning, but may be fraught with much. In the frog it will be re- membered these are laid in great shape- less masses ; in the toad they are shed in a long glassy rope which is twisted about the stems of water- plants. There must be a meaning, some advantage to the species, behind this, but so far no one seems to have had the curiosity to search out the meaning of the riddle. For the sake of what is to foUow a brief outline must now be given of the early stages in the life-history of the newt, which may be taken to represent the normal sequence of events in the development of those more lowly relatives. STAGES IN THE DEVELOPMENT OF A NEWT. A and B show two ver>' early phases before the body has begun to assume its final shape, and C D 13 show the " balancer," the beginning of the external gills, and the little buds which answer to the undeveloped 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 Pycraft, W. P. , (William Plane), b. 1868. New York, H. Holt and Company
Size: 1710px × 1462px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectanimals, bookyear1913