Regeneration and Regulation in Hydra Viridis; Contributions from the Zoölogical Laboratory of the Museum of Comparative Zoology at Harvard College, No. XCV.; Reprinted from Archiv fur Entwickelungsmechanik, Bd. VIII., Heft 1.
Cambridge: Museum of Comparative Zoology at Harvard College, 1899. First printing. Paperback. First edition, 1899. Softcover, illustrated, 34 pp. + plates, clean unmarked text, Very Good copy, small name-stamp and owner's signature on the front cover, a bit of age-toning to the pages and covers, light rubbing or creasing to.....