Letter | Published:

Effect of Chloretone on Tunicate Embryos

Naturevolume 175page1048 (1955) | Download Citation



IT has been known for many years that amphibian embryos, allowed to develop under narcosis before muscular movements start, show the normal reflex and muscular activity when removed from the anæsthetic1. Amphibian tadpoles can be narcotized only for short periods, as they need to feed.

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  1. 1

    Harrison, Amer. J. Anat., 3, 197 (1904). Mathews and Detwiler, J. Exp. Zool., 45, 279 (1926).

  2. 2

    Glaser and Anslow, J. Exp. Zool., 111, 117 (1949). Grave, Carnegie Inst. Wash. Pub., 29, 143 (1935).

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  1. Department of Zoology, King's College, London, W.C.2

    • L. G. E. BELL


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