William Emerson Ritter

University of California Publications in Zoology, 1908-1911, Vol. 6

University of California Publications in Zoology, 1908-1910, Vol. 5

The Ascidians Collected by the United States Fisheries Bureau Steamer Albatross on the Coast of California During the Summer of 1904, Vol. 4 (Classic Reprint)

War, Science and Civilization (Classic Reprint)

University of California Publications in Zoology, 1916-1918, Vol. 17: With 29 Plates (Classic Reprint)

University of California Publications in Zoology, Vol. 14 (Classic Reprint)

University of California Publications in Zoology, 1913-1916, Vol. 12: With 22 Plates (Classic Reprint)

University of California Publications, Vol. 1: Zoology; With 28 Plates (Classic Reprint)

University of California Publications in Zoology, Vol. 3 (Classic Reprint)

University of California Publications in Zoology, Vol. 4 (Classic Reprint)

University of California Publications in Zoology, 1910-1912, Vol. 7 (Classic Reprint)

The Higher Usefulness of Science, and Other Essays (Classic Reprint)

On the Eyes, the Integumentary Sense Papillæ, and the Integument of the San Diego Blind Fish (Typhlogobius Californiensis, Steindacuner) (Classic Reprint)

University of California Publications in Zoology, 1912, Vol. 11 (Classic Reprint)

University of California Publications in Zoology, 1915-1917, Vol. 16

University of California Publications in Zoology, Vol. 15 (Classic Reprint)

Zoology, Vol. 2 (Classic Reprint)

An Organismal Theory of Consciousness (Classic Reprint)

The Unity of the Organism, Vol. 2

The Unity of the Organism, Vol. 1: Or the Organismal Conception of Life (Classic Reprint)

The Unity of the Organism; Or, the Organismal Conception of Life, Volume II - Scholar's Choice Edition

The Ascidians... - Primary Source Edition

The Unity of the Organism... - Primary Source Edition

The Unity of the Organism Volume 1