Speculations On The Mode And Appearances Of Impregnation In The Human Female: With An Examination Of The Present Theories Of Generation is a book written by Robert Couper in 1789. The book explores the topic of impregnation in the human female and examines the theories of generation that were present at the time. Couper provides a detailed analysis of the process of impregnation and the various appearances that can be observed during the early stages...