PORTRAITS 



Benjamin Silliman Frontispiece 



From a painting by G. S. Hubbard, Esq., in possession of 

 Miss Henrietta W. Hubbard 



Benjamin Silliman, Jr opposite page 28 



James D.Dana " " 36 



EdwardS. Dana " " 48 



Wolcott Gibbs " " 52 



James Hall " " 84 



G.K.Gilbert " " 140 



Edward Hitchcock " " 156 



0. 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 " lt 336 



James Clerk Maxwell " " 348 



Louis Agassiz ' ' " 404 



Thomas H. Huxley " " 410 



A. E. Verrill " " 412 



Asa Gray " " 444 



Charles Darwin.. " " 452 



