6 5 0. 



PROCEEDINGS 



OF THE 



GEOLOGICAL 



POLYTECHNIC SOCIETY 



WEST BIDING OF YOEKSHIRE, 



1842—48. 



YJ}1 U M E II 

 t MAR 9 1882 ) 



LEEDS: 

 PRINTED BY EDWARD BAINES AND SONS. 

 1849. 



