30 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1946 
limestone containing fossils in various parts of the mountains. Dr. 
Preston E. Cloud joined the party on July 19 and served as leader for 
further work in the Central Hill country of Texas to collect Mississip- 
pian, Devonian, and Pennsylvanian fossils. After a week in this 
region the party divided, Dr. Moore to return to Kansas and Dr. 
Cooper and Dr. Knight to join Mrs. J. H. Renfro and Millicent Renfro 
for four days of collecting in the incomparable Pennsylvanian fossil 
deposits of Jack County, Tex. Work in the field ended on August 5 
after obtaining more than 5 tons of blocks of silicified material to be 
cleaned by etching with acid, and about 5,000 specimens of inverte- 
brate fossils from central Texas. 
On October 1 Dr. Cooper, accompanied by associate curator Byron 
N. Cooper and Y. Wang, a member of the Geological Survey of China 
working temporarily at the National Museum, left for the southern 
Appalachians and the Central Basin of Tennessee. Dr. C. O. Dunbar 
and Percy Morris of Yale University joined the party at Woodstock, 
Va. After several days in southwestern Virginia they continued west 
to Murfreesboro, Tenn.,and then to east Tennessee for work near 
Knoxville. From this vantage point forays were made into various 
parts of the Ordovician belts of east Tennessee for collecting and 
study. On October 16 Wang and the two Coopers continued south to 
Pratts Ferry about 35 miles south of Birmingham, Ala., and from here 
worked northeast along the Ordovician belts through northeastern 
Georgia and on into eastern Tennessee and Virginia. The party 
returned to Washington on November 14. This trip proved most 
profitable in checking on Ordovician stratigraphy. About 5,000 speci- 
mens, including considerable new material, were collected. 
On February 7, 1946, Dr. Cooper again left Washington for Austin, 
Tex., where he joined Dr. Preston E. Cloud, of the Geological Survey, 
for further studies and collecting in the central hill country. The 
two visited many localities in the neighborhood of Burnett, San Saba, 
Mason, and Brady. Many fine Mississippian fossils were collected 
and Pennsylvanian fossils were also obtained in several places. Dr. 
Cooper returned to Washington on February 24 with some 5,000 speci- 
mens that form a fine representation of these beds. 
The Museum’s part of the three geological expeditions described 
above was financed from the income of the Walcott fund. 
Dr. C. L. Gazin, curator of vertebrate paleontology, with Franklin 
Pearce, scientific aid, as assistant, left Washington on May 23, in a 
truck available through the cooperation of the United States Army, 
on an expedition into the western States, to obtain additional fossil 
mammal remains from Paleocene deposits and make further collec- 
tions of fossil lizards from the Cretaceous in central Utah, as well as 
