Note 200 — Chapter XIII · THE 'ORIGIN OF SPECIES'—REVIEWS AND CRITICISMS—ADHESIONS AND ATTACKS.

Dr. G. H. K. Thwaites, F.R.S., was born in 1811, or about that date, and died in Ceylon, September 11, 1882. He began life as a Notary, but his passion for Botany and Entomology ultimately led to his taking to Science as a profession. He became lecturer on Botany at the Bristol School of Medicine, and in 1849 he was appointed Director of the Botanic Gardens at Peradeniya, which he made "the most beautiful tropical garden in the world." He is best known through his important discovery of conjugation in the Diatomaceæ (1847). His Enumeratio Plantarum Zeylaniæ (1858-64) was "the first complete account, on modern lines, of any definitely circumscribed tropical area." (From a notice in Nature, October 26, 1882.)