lUO The American Geologist. December, isue 
for 8tiidy, but he alJotted slepi)ing rooms to a few of them 
who had no family. One of tliese rooms was allotted to Mr. 
Meek when he first went to Washington, and he occupied it 
until his death, always sleeping there when not absent on 
professional work. It was in this room, in the front tower of 
the main Smithsonian building, that the greater part of his 
scientific life-work was accomplished. 
The association which he formed with Dr. llayden in their 
western exploration in 1853, Avas practically continued until 
Mr. Meek's death. When Dr. Hayden began his afterward 
famous geological explorations of the Rocky Mountain region 
and of the adjacent plains, he placed all his collections of in- 
verterbrate fossils in Mr. Meek's hands for study; and al- 
though this work was wholly that of Mr. Meek, most of the 
results of such studies for several years were published under 
their joint names. The most important of these joint publi- 
cations, "The Palaeontology of the Upper Missouri," was is- 
sued by the Smithsonian Institution in 1865, and in man}^ 
respects it was at that time the most exhaustive work of the 
kind that had been produced in America. 
Notwithstanding his unbroken relation with Dr. Hayden, 
Mr. Meek declined to accept a regularly salaried position up- 
on the survey organized by the former, preferring to command 
his own time and opportunities for doing inviting work in 
various fields. He thus did for the Geological Survey of Illi- 
nois much the greater part of the work on invertebrate fossils 
that characterizes that fine series of reports, although it was 
published under the joint names of Meek and Worthen. Other 
important work upon paleozoic fossils was done by him for 
the Geological Survey of Ohio. 
A very large part of his work, however, was done upon fos- 
sils of later age, and only a few months before his death he 
finished what he regarded as the most important work of his 
life, namely, "A Report on the Invertebrate Cretaceous and 
Tertiary Fossils of the Upper Missouri Country." This work 
constitutes volume ixof the quarto series of the U. S. Geolog- 
ical Survey of the Territories, and contains more than 600 
pages of text, and 45 plates of illustrations. 
It is not necessary here to speak at length of the cliaraeter 
of Mr. Meek's scientific labors because the twenty jj^ears that 
