21^ Dr Paoio Savi 07h the Bag or Bladder occmionai^ 
we have a more direct evidence of it, on finding that, in the fe- 
male and in the young male, there is never an appearance of 
the bladder. The females and young males have uvulae pro- 
portionally larger than those of any other mammalia, but, as al- 
ready remarked, they bear no proportion to that of the adult 
male. This intimate connection between the organs of the 
throat and those of generation, must be allowed to be remark- 
able ; but it is welf known to physiologists, and therefore no- 
thing new. Various maladies that attack the genitals attack 
also the throat ; a change of voice is very frequently observed in 
the season of love, and the instantaneous and notable change 
of voice in men at the age of pubei*ty, is familiar to all. In 
not a few species of birds, the organs of voice in the male are 
absolutely different from those in the female ; in others, the in- 
terior of the mouth and throat in the male acquires, when they 
are in heat, a very different colour to what they have at other 
periods, and to what is always found in the female : and many 
similar examples may be collected in glancing over the history 
of the various tribes of animals. But the cause of this consent^ 
of this sympathy^ is still unknown, and if there be a way of de- 
tecting it, it will probably be by accurate observation and at- 
tention to the anatomy, and the phenomena which those animals 
present, in whom this sympathy is chiefly conspicuous. 
The presence of this uvula so long and flaccid, causes that raU 
tling in the throat of the adult male dromedary which gives so 
odd a sound to its voice. It is easily comprehended how the 
air, in passing from the larynx, by meeting with a soft and flaccid 
body, like the uvula, and constrained to pass below it, and a- 
mong its duplicatures, would produce a gurglings as in passing 
through a liquid ; and it is one proof of my assertion that the fe- 
males and young males, in which the uvula is little pendulous, 
never produce so distinct and decided a gurgling ; but their ciy 
is more like the bleating of goats. 
I shall terminate this memoir by the remark, that, in drome- 
daries, the uvula, velum pendulum palati, and all the membranes 
that line the mouth and the upper part of the alimentary canal, 
are often the seat of severe diseases, from which they are with 
difficulty saved, at least such is the case in the herd of Pisa. Every 
year some of the very young dromedaries are seized with ulcers. 
