174 3 The Botanical Gazette. 
and instructive exhibit and paved the way for a better study 
and increased knowledge of the forest wealth, with which our 
country has been so richly blessed and which our people have 
so wantonly wasted. 
_ But his crowning work was undoubtedly the building up of 
the great herbarium. In it are preserved the specimens col 
lected in the various government surveys, and to these are 
added a vast number obtained by exchange and purchase, by 
gift from foreign governments and by collections from the 
remoter regions of the United States and Mexico made by 
the special collectors of the division. The collection & 
grasses from North America is probably the richest to be 
found anywhere. Of these alone there are nearly 15,000 
sheets. A great part of these he not only named but labelled 
and mounted; and it is in the study of the Graminet 8 ~ 
represented in North America that he has done peciliat 
service to American botany. ° It will perhaps be a surprise 
many to know that before he took up the grasses as @ SP 
cialty he had collected and studied mosses extensively. 
Fo 
lished in 1884. This edition was soon exhausted and i 
1889 a new, revised, and enlarged edition was published 
has been in great demand. He published several other 28 
tins treating of grasses from a practical standpoint aa 
pecially important being numbers 1, 3 and 6, of the : 
vision. He contributed numerous scientific pape. 
est solicr 
Monograph of North American grasses. This was 
amidst the pressure of many official duties and pee 
somewhat hastily published. The first part was eer? , 
faty 25, 1892, and the second was being rapidly pus 
Was not finished at the time of his death. The wor ™ 
ever, 1s So advanced that we may hope for its early 
tion and publication. But larger and more importa™ 
this was his Illustrations of North American Grasse® 
ist volume, issued in two parts, treats of the ‘‘Grass®" 
2 
