PORTRAITS 



Benjamin Silliman Frontispiece 



From a painting by IT. D. Tenney, Esq., in possession of 

 Miss Henrietta W. Hubbard 



Benjamin Silliman, Jr opposite page 28 



James D.Dana " " 36 



EdwardS. Dana " " 48 



WolcottGibbs " " 52 



Benjamin Silliman " " 58 



James Hall " " 84 



G. K. Gilbert " " 140 



Edward Hitchcock " " 156 



O. C. Marsh " " 232 



F. V. Hayden " " 196 



J. W. Powell " " 204 



Clarence King " " 208 



George J. Brush " " 276 



J. Willard Gibbs " " 324 



H. A. Newton " " 336 



James Clerk Maxwell ' ' " 348 



Louis Agassiz " ' ' 404 



Thomas H. Huxley " " 410 



A. E. Verrill " " 412 



Asa Gray . . * ' ' 444 



Charles Darwin. . " " 452 



