"We have already hinted, that for the same, or similar reasons, none of the ordinary organs of sense are qualified to receive or communicate distinct impressions, till the brain, the common emporium of them all, has acquired those properties which must fit it for its arduous offices; and, as in the case already more particularly investigated, the powers of the mind, gradually unfolding themselves simultaneously with the organs of the body which are to support them, countenance the opinion."
Speculations on the Mode and Appearances of Impregnation in the Human Female: with an Examination of the Present Theories of Generation
Robert Couper. <u>Speculations on the Mode and Appearances of Impregnation in the Human Female: with an Examination of the Present Theories of Generation</u>. Edinburgh: Printed for C. Eliot, 1789. &lt;<a href="http://books.google.com/books?id=IQQAAAAAQAAJ">Link to Google Books</a>&gt;