Abstract
AT the beginning of April last I collected some frog ova for the purpose of making observations on development. Tadpoles appeared about April 9, and from time to time from that date until July 17, when young frogs were developed, I took batches away for preservation and sectioning. On July 17 only one tadpole was left of the original stock, and that one, though in water out of doors and with a supply of waterweed, has not developed farther, but is a tadople still and is still alive. Some years ago I had a similar case with a frog tadpole. Can any of your readers suggest the reason of this phenomenon?
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PLOWMAN, T. Tadpole of Frog. Nature 88, 213 (1911). https://doi.org/10.1038/088213c0
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DOI: https://doi.org/10.1038/088213c0
