Died at Melbourne, 16th December, 1889. He was a good microscopist. His botanical studies were chiefly devoted to algae, both fresb-water and marine, and while living for many years at Warrnambool he was a contributor of algae to Harvey, who figured Wrangelia wattsii, Harv., and Crouania wattsii, Harv., in his “Phycologia Australica "
See an obituary notice, with other biographical notes,.in Vict. Nat., vi.. 138..
He was the author of "On the Fresh-water Algae of Victoria " (Trans. Roy. Soc. Vict., 1861-4, 67) ; .also a paper "On Fossil Polyzoa" (ib.. 82); "A Trip to Mt. Macedon in Search of Fresh-water Algae" (Wing's S. S. Record, iii., 252); "On a Species of fresh-water Algae from Victoria" (Vict. Nat., i., 21); "Some Recent Additions to our Knowledge of Microscopic Natural History" (ib., iii., I33) (includes lists of fresh-water algae and Desmidieae ),
First librarian (1881-2), also a vice-president of the Field Naturalists' Club of Victoria. He is further commemorated by Acacia wattsiana. F. v. M.
Source: Maiden, J.H. (1908). Records of Victorian Botanists. Victorian Naturalist 25:101-117