14 MA NUSCRIPT BIBLIOGRAPHIES 



Platinum: 



Platinum metals. R. Gilchrist, Bureau of Standards, Washington, D. C. 

 200 to 250 entries, by title. January 1, 1918-date. Brief abstracts 

 in most cases. All references in Chemical Abstracts included. 

 Poisons: 



Economic poisons: substances used for the control of insects, fungi, weeds, 

 and rodents. George P. Gray, State Department of Agriculture, 

 Sacramento, Calif. 20,000 entries, by subject. Covers Chemical 

 Abstracts 1911-1920; Experiment Station Record, Vols. 13-24. 

 Potash: 



Potash as by-product from blast furnaces and cement mills. Western 

 Precipitation Co., 1016 W. 9th St., Los Angeles, Calif. 100 entries, 

 by author and title. 1904-date. Abstracts included. Complete. 

 Potassium Chlorate: 



Decomposition of potassium chlorate. F. E. Brown and H. M. McLaugh- 

 lin, Iowa State College, Ames, Iowa. 175 entries, by author, title, and 

 subject. 1840-date. Abstracts included for about one-half. Must 

 not pass out of owner's possession. 

 Proteins: 



Proteins and accessory factors in nutrition. H. A. Mattill, University of 

 Rochester, Rochester, N. Y. 750 entries, by subject. 1912-date. 

 Abstracts usually included. 90 per cent complete. 

 Pulp and Paper-Making: 



C. E. Libby, New York State College of Forestry, Syracuse, N. Y. 800 

 entries, by author, title, and subject. 1914-date. Very brief abstracts 

 included. Covers four paper trade journals. 



Manufacture, chemical, and physical properties, methods of testing, etc., 

 of pulp and paper. C. J. West, National Research Council, Wash- 

 ington, D. C. 5000 entries, by author, arranged under principal 

 paper-making subjects. One-half complete. 

 See also Bagasse (Little); Flax (American Writing Paper Co.). 

 Pyrazoline: 



Pyrazoline derivatives. L. L. Steele, Bureau of Standards, Washington, 

 D. C. 70 entries. Up to and including 1916. Abstracts included 

 For consultation write either to the Bureau of Standards, Washington, 

 D. C., or Chemical Library, Harvard University, Cambridge, Mass. 



Rare Earths: 



Rare earths and secondary rare elements. Charles Baskerville. 25,000 

 entries. Not readily accessible. For consultation, write Library, 

 College of the City of New York, New York, N. Y. 

 Refractories: 



Clay and graphite refractories. H. G. Schurecht, Bureau of Mines, 



Ceramic Experiment Station, Columbus, Ohio. 75 per cent complete. 

 Magnesite and dolomite refractories. H. G. Schurecht, Bureau of Mines, 

 Ceramic Experiment Station, Columbus, Ohio. 300 entries, by author, 

 title, and subject. 1873-1921. Abstracts included. Includes six 

 bibliographies and other references obtained from literature, being 

 fairly complete. 

 Resins: 



See Naval Stores (Schorger); Terpenes (Grotlisch). 

 Roads: 



Surface treatment of roads for laying dust. Arthur D. Little, Inc., Cam- 

 bridge, Mass. 65 entries, by author. 

 Rosin: 



See Naval Stores (Schorger); Terpenes (Grotlisch). 

 Rubber: 



Methods of rubber analysis. Frances McGovern, B. F. Goodrich Com- 

 pany, Akron, Ohio. 289 entries, by author and subject. Earliest 

 references to 1920. Abstracts included. Considered complete. 

 Rubber insulated cable. Arthur D. Little, Inc., Cambridge, Mass. 15 

 entries, by author. 



Salt: 



Salt and salines. W. C. Phelan, The Solvay Process Co., Syracuse, N. Y. 

 Entries by author, title, and locality. Complete to date. 



