Wrote Letter L-486 of 1712-04-12 to the members of the Royal Society about the structure of the genetalia of a female elephant and the structure of an elephant's skin
Date:
April 12, 1712
The original manuscript on five quarto pages, written and signed by Leeuwenhoek, is preserved at the Royal Society (MS. 2087. L 4. 44). A separate sheet had 3 figures in red chalk.