Vlll CONTENTS. 



Paoe 

 XXVIII. Structure of the Lymphatic Glands . . 439 



XXIX. The Structure of the Human Placenta . 445 



XXX. The Structure and Economy of Bone . 461 



XXXI. The Mode of Reproduction after Death of 



the Shaft of a Long Bone . . . 465 



XXXII. The Mode of Reproduction of Lost Parts in 



the Crustacea . . . . .471 



XXXIII. Of the Anatomy and Development of the 



Cystic Entozoa ..... 476 



XXXIV. Description of an Erectile Tumour . . 504 



(Monthly Medical Journal, 1845.) 



XXXV. Description of a Congenital Tumour of the 



Testis 506 



(Northern Journal of Medicine, 1845.) 



XXXVI. The Curvatures of the Articular Surfaces 

 and the General Mechanism of the Hip- 

 Joint ...... 508 



