CONTENTS. 



Descriptions of Grasshoppers, from Colorado. By Prof. Cyrus 

 Thomas 74 



Remarks ou Huxley's Classification of Birds. By T. Hale 

 Streets 84 



On some New Species of Fishes obtained by Prof. Orton from 

 the Maranon, or Upper Amazon, and Napo Rivers. By 

 Theodore Gill, M.D., Ph.D 92 



Proceedings of the Biological and Microscopical Department 1 



