Jan., 1908. Annual Report of the Director. 153 



DEPARTMENT OF GEOLOGY. 

 (accessions are by gift unless otherwise designated.) 

 AMERICAN VANADIUM COMPANY, Pittsburgh, Pennsylvania. 



5 specimens vanadium ores — Minasragra, Peru. 

 ATLAS SCHOOL SUPPLY COMPANY, Chicago. 



7 relief maps 3^x4' — various countries. 

 AYER, EDWARD E., Chicago. 



I large sheet crystallized copper — Cananea, Mexico. 

 BARTON, S. W., Chicago. 



I specimen crystallized calcite, 2 specimens analcite — Lake Superior. 

 CHICAGO COPPER REFINING CO., Blue Island, Illinois. 



7 specimens ores and concretions — United States and Canada. 

 COHEN, M., Assuan, Egypt. 



I specimen bloodstone, i specimen peridot — Mt. Sinai, Egypt. 

 DAVIN, JAMES P., Chicago. 



I specimen calcareous tufa — Chicago. 

 DIVER, DANIEL, Deerfield, Wisconsin. 



1 specimen fire clay — • Canada. 

 DUNHAM, N. W., Somerville, Texas. 



4 specimens fuller's earth — United States. 

 EMPIRE MINING COMPANY, Platteville, Wisconsin. 



2 specimens lead and zinc ores — Platteville, Wisconsin. 

 ESSIG & CO., F. J., Chicago. 



4 specimens cut sodalite — Canada, 2 specimens cut azurite and mal- 

 achite — Lyon County, Nevada (exchange). 

 FIELD MUSEUM OF NATURAL HISTORY. 

 Collected by O. C. Farrington: 



37 specimens copper and iron ores, pitchstone, agate and thomsonite 



— Lake Superior. 

 2 specimens concretions, 4 specimens rocks — Montana. 

 Collected by C. F. Millspaugh: 



39 specimens beach pebbles illustrating attrition — Little Sister Bay, 

 Wisconsin. 

 Collected by H. W. Nichols: 



4 specimens worm borings in Potsdam sandstone, i specimen Potsdam 

 sandstone — Crevitz, Wisconsin. 

 Collected by A. W. Slocom: 



25 fossil crinoids — Burlington, Iowa. 



3283 fossil shells (representing 36 species) Pleistocene marls of Little 



Traverse Bay, Michigan. 

 29 specimens concretions and pebbles, 860 specimens Devonian inver- 

 tebrate fossils — Little Traverse Bay, Michigan. 

 Purchases: 



I relief map of United States. 



I seventeen pound individual Admire meteorite — Admire, Kansas. 

 1369 specimens fossil crinoids and blastoids — Btirlington, Iowa: 4231 

 specimens invertebrate fossils — Mississippi Valley; 62 specimens 

 fossil plants — Pennsylvania and Ohio. 



