58 CARNEGIE INSTITUTION OF WASHINGTON. 



Mr. Walter S. Landis, of Lehigh University, is in charge of 

 studies relating to the bituminous coal industr}-. Mr. Landis has 

 been collecting all material of historical and statistical nature up to 

 1880, since which tiine reports of the Federal Government have been 

 available. Mr. Landis is in a position to use the technical collection 

 of the late Eckley B. Coxe, probably the largest collection of books, 

 pamphlets, and reports on coal-tmining in the world. On account of 

 this immense amount of material, the work required to cover a given 

 district is very large and progress some^^4lat slow, but, on the whole, 

 Mr. Landis is of the opinion that 'his library research, so far as this 

 work is concerned, is about one-third completed. 



Mr. G. P. Grimsley, of the West Virginia Geological Survey, is 

 in charge of studies of petroleum and natural gas. He has access to a 

 large amount of original records relating to this subject. 



Mr. F. B. Laney, of the Universit)- of North Carolina, in charge 

 of inquiry on building stones and quarr}ing, promises a most inter- 

 esting chapter on this important subject. 



Mr. Heinrich Ries, of Cornell University, is studying the economic 

 influences resulting from the production of clay materials. For a 

 number of years Dr. Ries has been making a stud}^ of the clays of 

 this and other countries, and he 'has altogether in his possession a 

 very large amount of data necessary for this work. 



Dr. Joseph Hyde Pratt, of North Carolina, is studying abrasive 

 materials, rare earths, and mica. 



Mr. E. C. Eckels, of the U. S. Geological Survey, has undertaken 

 t!he study of cement, gypsum, and magnesite. He has been able to 

 work up a complete and considerable portion of his data relating to 

 this subject. He will discuss cement materials, and how far they are 

 economically used in the development of building. Mr. Eckels states 

 that other portions of his work are well advanced. 



Mr. Ira A. Williams, of the Columbia School of Mines, has under- 

 taken the study of asbestos, barytes, fluor-spar, fullers' earth, talc, 

 graphite, lithograph stone, lithium minerals, mineral pigments, and 

 soapstone. The results of the studies of these various minerals will 

 consist of brief chapters. Mr. Williams has prepared a tentative 

 scheme of treatment, which Mr. Parker has approved. 



Prof. Charles E. Munroe, of the George Was-hington University, 

 Washington, D. C, has taken up chemical materials, and will prepare 

 a report on that subject, but in cooperation with the report on 

 chemical manufactures under the charge of Mr. North. 



Mr. Parker reports that he has not yet arranged definitely for the 



