Note 105 — Chapter I · History of the Sexual Theory.

Joseph Gottlieb Koelreuter was born at Sulz on the Neckar in 1733, and died at Carlsruhe in 1806, where he was Professor of Natural History, and from 1768 to 1786 Director also of the Botanic and Grand-ducal Gardens. On giving up the latter position he continued his experiments in his own small garden till the year 1790. Karl Friedrich Gärtner in his work ‘Ueber Bastardzeugung’ of 1849, at p. 5 says that after the latter date Koelreuter occupied himself with experiments in alchemy; but this must be a mistake. Gärtner, loco cit., and the ‘Flora’ of 1839, p. 245, supply all that seems to be known of the life of this distinguished man. The ‘Biographic Universelle’ contains no account of him. It would appear that he was in St. Petersburg before 1766.