LECTURES 



COMPARATIVE ANATOMY AND PHYSIOLOGY 



INVERTEBRATE ANIMALS, 



DELIVERED AT THE ROYAL COLLEGE OF SURGEONS. 



BY RICHARD OWEN, F.R.S. 



HC5TEBIA2t FEOFESSOK TO THE COIX£OK. 



SECJOND EDITION. 



XXiXitrSTRATXU) 87 XTTTMESOUS WOOSCITTS. 



LONDON: 



LONGMAN, BROWN, GREEN, AND LONGIVLANS. 

 IS35. 



