Bureau of Science Service 
15 
W. M. Tucker. Their studies have covered the widest range of 
subjects: Coal, Building Stone, Oil and Gas, Clays, Soils, 
Iron Ore, Mineral Waters, Roads and Road Metal, Water 
Power and Water Sources generally, Kaolin, Mapping of 
Geologic Formations, Fossils and Stratigraphy. This list is 
by no means exhaustive. 
Indiana Division of Geology 
The following is a very brief statement, by Professor Wil- 
liam N. Logan, of the work of the Division of Geology of the 
Conservation Commission since its inception in 1919 : 
1919. A survey of the kaolin deposits of Lawrence and adjacent coun- 
ties made and topographic map of the region published under the 
title Kaolin of Indiana. Prepared “Mineral Resources of Indiana,” 
published in Year Book. Made survey and report on the coal under 
Wabash River. Made survey of coal waste in Indiana, published in 
Year Book. 
1920. Survey of the coal fields of Indiana and study of the coals and 
associated clays and shales begun. Investigation of oil shales of 
Indiana begun. The following reports: The Building Stones of In- 
diana, The Cement Materials and Industry in Indiana, Petroleum 
and Natural Gas in Indiana, prepared and published. 
1921. Made a geological survey of the Clay City quadrangle; continued 
the survey of the coal field; at request of Chicago Gas and Fuel 
Company made a study of geological and structural features in the 
Tipton-Howard gas field and furnished report; outlined structural 
conditions in the Glezen and Rogers’ Station areas of Pike County 
and prepared structural maps, for the oil industry; established a 
laboratory for the investigation of Indiana oil shales in cooperation 
with the U.S. Bureau of Mines. Prepared and published the follow- 
ing reports: Reports on oil shales of Indiana published in Street, 
Mining Engineering , and Oil Shale Review. Prepared report of 
Petroleum in Indiana for Petroleum Register. Inspected and 
plugged 424 abandoned deep wells. Prepared and published a map 
of the coal fields of Indiana. Prepared: “Gold in Indiana,” “Potash 
in New Providence Shale,” “Division of Geology,” published in Year 
Book, 1921. 
1922. Continued the survey of the coal fields; made a survey of the 
Brewersville gas area, furnished map and report; surveyed Oatsville 
oil field and made structural map; continued servey of oil shale 
area, with Mr. Reeves, and work on clay and shales of Indiana; in- 
vestigated stripped coal lands with State Forester, made report and 
recommendations for reclaiming such lands; made survey of the 
Laconia gas field in Harrison County, prepared map and report; 
surveyed Oakland City oil pool. Published jointly with members of 
the staff, the Handbook of Indiana Geology, 1,120 pages, which dis- 
cusses the geography, physiography, hydrology, stratigraphy, eco- 
