CONTENTS. VII 



Page. 



The Mile Reservoir Dam at Assuan, by TiionuiH II. Means. 531 



The Panama Koute for a Ship Canal, hy William H. Burr 537 



The Problems of Heredity and tlu'ir Solution, by W. Bateson 559 



The Morjiholo.irical ^Method and Kecent Progres.s in Zoolo<zy, by Prof. (t. V>. 



Howes 581 



Coral, b\' Dr. Louis Roule 609 



Reindeer in Alaska, by Gilbert H. Grosvenor 613 



A Marine University, 1 >y W. K. dJregory 625 



John AVesley Powell, 1 )y G. K. Gilbert 633 



Rudolph Virehow, by ( )sear Lsrael 641 



