132 



[March 17, 



Mass. ; Scientific Alliance, New York, M . Y. ; Pennsylvania 

 State College, Harrisburg; Mr. Herbert Welsh, Philadelphia ; 

 Smithsonian Institution, United States Geographical and Geo- 

 logical Survey of the Eocky Mountains, Adjutant General's 

 Office, Washington, D. C. ; Artillery School, Fortress Monroe, 

 Va. ; Society of Natural History, Cincinnati, 0. ; Academy 

 of Science, Tacoma, Washington ; Agricultural Experiment 

 Stations, College Park, Md., Morgantown, W. Va., Little 

 Eock, Ark. 



The following decease of members was announced: 



Hippolyte Taine, Paris, March 5, 1893, set. 65. 



William B. Rogers, Philadelphia, March 15, 1893, set. 55. 



On motion, the President was requested to prepare an obit- 

 uary notice of Mr. Rogers. 



Secretary Barker presented for the Transactions a paper by 

 Prof. Francis C. Phillips entitled, " Researches upon the 

 Chemical Properties of Gases," which was referred to Drs. 

 Barker, Marshall and Smith, a Committee to examine and 

 report upon the same. 



A paper by Prof. A. S. Packard, entitled " The Life Histo- 

 ries of Certain Moths of the Families Ceratocampidie and 

 Hemileucidse, etc.," was presented by the Secretaries for the 

 Proceedings. 



Prof. Snyder presented a paper by W. F. McK. Ritter, 

 "On a New Method of Determining the General Perturbation 

 of the Minor Planets." 



Dr. Cope presented a paper by Prof. Dwight, on " Psoas 

 Parvus and Pyramidalis." 



Pending nominations Nos. 1249, 1250, 1253, 1255, 1256, 

 were read. 



According to notice, the stated business of the evening, the 

 question of withdrawing the Society's collections now on 

 deposit in other institutions, was taken up. 



