58 CARNEGIE INSTITUTION OF WASHINGTON. 



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

 studies relating to the bituminous coal industry. Mr. Landis has 

 been collecting all material of historical and statistical nature up to 

 1880, since which time 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^mining in the world. On account of 

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

 district is very large and progress somew^hat 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 c'harge of studies of petroleum an'd natural gas. He has access to a 

 large amount of original records relating to this subject. 



Mr. F. B. Laney, of ithe University of North Caroli-na, in charge 

 of inquiry on building stones and quarrying, promises a most inter- 

 esting ohapter 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 study of the clays of 

 this and other countries, and the 'has altogether in ihis possession a 

 very large amount of data necessary for this work. 



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

 materials, rare earths, and mica. 



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

 the 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, lithiuim 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, vVhich Mr. Parker has approved. 



Prof. Charles E. Munroe, of the George Washington 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 



