TREMBLEY, A. Mémoires, pour servir à l'histoire d'un genre de polypes d'eau douce, à bras en forme de cornes. Leyden, J. & H. Verbeek, 1744. xv, (1), 324, (1) pp. W. 4 engr. headpieces by J. v. Schley after C. Pronk & 13 engr. fold. plates after P. Lyonet. 4°. Cont. cf. w. raised bands & dec. gilt back. (Spine cracked and a bit dam., joints split, corners a bit worn, slightly browned/foxed in places).First edition. The results of Trembley's studies and observations on the hydra were published in this work in 1744 at the encouragement of his friend Raumur. "Trembley discovered the hydra and was the first to observe in it a sexual reproduction, regeneration, and photosensitivity in an animal without eyes. His experiments were of great importance in the study of regeneration of lost parts. He was the first to make permanent grafts and to witness cell-division" (G-M 307). - Nissen ZBI 4163.
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