poison of the common toad. 131 
Whether these apparent pores are the medium of com- 
municating between the blood in the sub-cutaneous capillary 
vessels, and the atmosphere ; or, whether they are merely 
the cutaneous apparatus of secretion and exudation, it is 
difficult to determine ; it is not improbable that they perform 
both functions. 
Corfu, September 15th, 1825. 
