1 38 TJic American Geologist. September, i899 
as one of the most able continuators of the science of which 
Ciivier had laid the foundations. 
Prominent among the various societies of which he was a 
member may be mentioned: 
The National Academy of Sciences; Institute of France; 
Royal Academy of Sciences, Brussels; Royal Bavarian 
Academy of Sciences, Munich; Royal Academy of Sciences, 
Bologna; Royal Danish x*\cademy of Sciences, Copenhagen; 
Royal Irish Academy; Geological Society of London; Geo- 
logical Society of Germany; American Philosophical Society; 
Academy of Natural Sciences, Philadelphia; Zoological So- 
ciety of London; Societe Imperiale des Naturalistes, Moscow; 
Geological Society of America, etc., etc. 
The subject of the present sketch was born near Lockport, 
New York, October 29, 183 1. His parents were Caleb and 
Mary Peabody Marsh, formerly of Danvers (now Peabody), 
Massachusetts. His early education was obtained in the 
schools of Lockport and at the Wilson Collegiate Institute, 
Wilson, New York. A residence in a region rich in minerals 
and fossils is apt to attract the attention of a youth possessing 
healthy intelligence, and young Marsh soon shared his vaca- 
tion time between the normal pursuits of shooting and fishing 
and the more unusual vocation of collecting minerals and 
• fossils. By the time he was nineteen years old, he had thus 
acquired the taste for scientific subjects which was destined to 
grow and dominate the remainder of his life. 
In 185 1, he entered Phillips Academy at Andover, Massa- 
chusetts, and continued his studies there until graduation in 
1856. He immediately entered the freshmen class in Yale 
College, pursuing the regular classical course, and receiving 
the degree of B. A. in i860. Graduate courses in the natural 
sciences were continued in the Sheffield Scientific School dur- 
ing the two years following (1861-62). The long summer 
vacations from 1851 to 1862 were occupied in collecting min- 
erals and fossils from New York, New England, and Nova 
Scotia. To the latter region he made five trips during this 
interval, and obtained much valuable experience and scientific 
material. On his second visit (1855) he found some fossil ver- 
tebrae in the Coal Measures at South Joggins, representing a 
new and important vertebrate animal {Eosaur7is). This dis- 
