SCHWANN, Theodor. Mikroskopische Untersuchungen über die Uebereinstimmung in der Struktur und dem Wachsthum der Thiere und Pflanzen, Berlin, Sander'schen Buchhanlung (G.E. Reimer), 1839, 8°, FIRST EDITION, 4 folding engraved plates (title with light stains at upper margin, library perforations and accession no. on verso), contemporary half cloth (spine torn slightly and with shelf-mark at foot). [Pritzel 8525; PMM 307(b); Honeyman Pt. VII, lot 2827]
Dibner Heralds of Science 197: "In 1838 Schwann recognised the ovum to be a cell and drew from this epochal decision three conlusions: that the entire plant or animal consists of a grouping of cells or cellular derivatives; that each cell has a certain amount of individual life; that each cell life is subject to that of the organism as a whole. These concepts still prevail. The cell (so named by Hooke) thus became the building block for the entire structure of plant and animal life and provides the distinction between a living and a dead organism."