256 PROFESSOR PANCERI 



tapering at the two extremities are also trail sversly furrowed, 

 one might almost say crimped, as the furrows diminish or 

 augment, according to the contraction or relaxing of the 

 siphon. Injections, made for the purpose of discovering if 



Lummous (Jrgaus of Pliokdes. 



these organs have special vessels, led me to discover that an 

 artery coming from the inferior aorta is directed to the tri- 

 angular organs, but gives them no special ramification ; 



