REFERENCES 



Under this heading it is proposed to include, by author, title, and citation, references to all 

 scientific papers published in or emanating from Washington. It is requested that authors cooperate 

 with the editors by submitting titles promptly, following the style used below. These references are 

 not intended to replace the more extended abstracts published elsewhere in this Journal. 



CHEMISTRY 



Blum, William. The determination of aluminium as oxide. Bureau of Stand- 

 ards Scientific Paper No. 286 (Bull. Bur. Stds., 13: 515-534). 1916. 



Cain, J. R., Schramm, E., and Cleaves, H. E. The preparation of pure iron and 

 iron-carbon alloys. Bureau of Standards Scientific Paper No. 266 (Bull. 

 Bur. Stds., 13: 1-26). 1916. 



Clarke, F. W., and Wheeler, W. C. The inorganic constituents of alcyonaria. 

 Proc. National Acad. Sci., 1: 552-556. 1915. 



Gillespie, L. J. The reaction of soil and the measurements of hydrogen-ion con- 

 centration. Journ. Wash. Acad. Sci., 6: 7-16. 1916. 



Hillebrand, W. F., and Scherrer, J. A. Recovery of gallium from spelter in the 

 United States. Journ. Ind. and Eng. Chem., 8: 225. 1916. 



Lubs, Herbert A., and Clark, Mansfield. On some new indicators for the 

 colorimetric determination of hydrogen-ion concentration. Journ. Wash. Acad. 

 Sci., 5:609-617. 1915. 



Waters, C. E., and Ttjttle, J. B. Some qualitative tests for gum arabic and its 

 quantitative determination. Bureau of Standards Technologic Paper No. 67. 

 Pp. 15. 1916. 



Weaver, E. R. The colorimetric determination of acetylene and its application 

 to the determination of water. Bureau of Standards Scientific Paper No. 267 

 (Bull. Bur. Stds., 13: 27-65). 1916. 



MAMMALOGY 



Allen, J. A. The genotypes of Echimys and Loncheres. Proceedings of the 

 Biological Society of Washington, 29:205-206. September 22, 1916. (Ar- 

 gues that E. spinosus is the type of Echimys and L. chrysurus the type of 

 Loncheres. — N. H.) 



Gabrielson, I. N. A second record of Nyctinomus depressus for Iowa. Pro- 

 ceedings of the Biological Society of Washington, 29:86. April 4, 1916. 

 (A specimen of this southwestern species taken at Marshalltown. — N. H.) 



Goldman, E. A. Notes on the genera Isothrix Wagner and Phyllomys Lund. 

 Proceedings of the Biological Society of Washington, 29: 125-126. June 6, 

 1916. (Several species heretofore included in Isothrix are transferred to the 

 genus Phyllomys. — N. H.) 



Goldman, E. A. The status of Sigmodontomys alfari Allen and Oryzomys 

 ochraceus Allen. Proceedings of the Biological Society of Washington, 29: 

 127. June 6, 1916. (These specific names are synonymous, and the animal 

 should be called Nectomys alfari. — N. H.) 



40 



