Charles Frederick Hartt. 
11 
Buffalo Seminary, Buffalo, N. Y., of which her mother, 
for several years past, has been the principal. 
While at Cornell University, when not occupied with 
college duties, he was engaged in working up the results of 
his Brazilian explorations, and in preparing his report as 
geologist of the Thayer Expedition. This report, however, 
grew to so great a size, and was so complete in itself, that 
it was found advisable to publish it separately in 1810 as 
“The Geology and Physical Geography of Brazil.” It 
forms a large octavo volume of over six hundred pages, and 
contains in addition to an account of his own researches, a 
resume of our previous knowledge of the natural history of 
the country. It is thus not limited to a discussion of the 
subject indicated by the title, but treats of the topograph- 
ical and general features of the country, of its flora and 
fauna, both marine and terrestrial, and of its mining, agri- 
cultural, commercial and manufacturing interests. The 
numerous maps and sketches which illustrate it, were drawn 
by Professor Hartt himself, and the greater part of them 
represent regions never before depicted. The volume closes 
with a valuable appendix on the Botecudo Indians. 
In the year 1870, the same in which his book was issued. 
Professor Hartt organized the largest of his own expeditions 
from the United States. It was composed, beside himself, 
of Professor Prentice and eleven students of Cornell Uni- 
versity. His object in taking so many young men was to 
give them thorough practical training, and to stimulate 
them to undertake original work. He says in his report 
of this expedition, that he did not expect to make scientists 
of them all, but hoped that some of them might thus be in- 
duced to accept this calling. The means for defraying the 
Expenses of the trip were contributed by several parties, 
the most prominent of whom was Mr. E. B. Morgan of Au- 
rora, N. Y. whose name has been given to this and the sub- 
sequent expedition. 
Prof. Hartt determined on this occasion, to change his 
field of research, and explore the Amazonas. Accordingly 
he went with his party direct to Para, and in the neighbor- 
