Dedifferentiation in echinus larvae, and its relation to metamorphosis

Oxford: reprinted from the Biological Bulletin, 1922. 8vo, pp. [209]-239 [i.e. 32 pages]; orignal plain wrappers; staple-bound; some gatherings unopened; inscription at the top of the front wrapper of Dr. E. J. Lund whose name appears in the bibliography. Reprinted from the Biological Bulletin, vol. xliii, no. 3, September, 1922. Item #56999

Price: $35.00

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