loo Dr. Davy on the urinary organs , &c. 
bladder ; nor do I propose now, more than barely to allude 
to it. I flatter myself, that the analysis I have given of the 
contents of the bladder of the frog and toad, not to mention 
the anatomical observations detailed, will satisfy the sceptical, 
that the bladder of these animals is really a bladder of urine, 
according to the opinion long since advanced by M. Cuvier. 
Colombo , Ceylon, January 28, 1819. 
