TABLE OF CONTENTS. Vll 



PAGE 



1882 



XXII. On the structure and development of Lepidosteus. By 

 F. M. BALFOUR and W. N. PARKER. With Plates 

 3442 738 



XXIII. On the nature of the organ in Adult Teleosteans and 



Ganoids which is usually regarded as the Head-kidney 



or Pronephros ........ 848 



XXIV. A renewed study of the germinal layers of the Chick. By 



F. M. BALFOUR and F. DEIGHTON. With Plates 



43, 44, 45 854 



POSTHUMOUS, 1883 



XXV. The Anatomy and Development of Peripatus Capensis. 

 Edited by H. N. MoSELEYand A. SEDGWICK. With 

 Plates 4653 . .871 



