concerning Animal Impregnation. 183 
and I considered it by no means inapposite to the subject, to 
determine whether these conjectures were authorized by any 
Visible changes, either in the condition or situation of the tubes. 
But the fruits of this inquiry will appear by the following ex- 
periments. 
EXPERIMENTS. 
A female rabbit in high season was admitted to the male, 
and in a few minutes afterwards the ovaries and tubes were 
brought into view; but the fimbriae were in their natural 
situation. 
As soon as proper rabbits could be procured, I repeated this 
experiment on two others, with precisely the same conse- 
quence. 
These facts militate strongly against the possibility of the 
conveyance of the semen to this part vi jaculationis, and de- 
monstrably prove, as far as three facts can go, that if the 
moving power inheres in the female, it is not instantaneously 
exerted. 
But are the powers of the fecundating fluid conveyed at any 
time by the tubes ? 
This simple question betrayed me into the prosecution of 
experiments to a greater extent than I at first expected ; for 
the result of several of them was unsatisfactory : but being 
once engaged in the question, I felt myself compelled to pro- 
secute it, by examining these parts at different periods from 
the coitus to the manifestation of its effects. But I found from 
a regular series of observations made on different rabbits, at 
every hour between the first and the ninth, that the fimbriee 
remained nearly in their usual situation ; and the only differ- 
