September 27, 1901.] 



SCIENCE. 



493 



Professor Wm. C. Ferril, Curator, State Historical 

 and Natural History Soc, 2123 Downing Ave., Den- 

 ver, Colo. 



Dexter M. Ferry, Jr., Seedsman, 1040 Woodward 

 Ave., Detroit, Mich. 



Francis A. J. FitzGerald, P. O. Box 118, Niagara 

 Falls, N.Y. 



Kobert H. Forbes, Professor of Chemistry and Dir. 

 Agr. Exper. Sta., Territorial Univ., Tucson, Ari- 

 zona. 



Floyd C. Furlow, Professor Experimental En- 

 gineering, Ga. School of Technology, Atlanta, 

 Ga. 



John B. Garvin, Instructor in Chemistry, Denver 

 High School, 2536 W. 34th Ave., Denver, Colo. 



H. Allan Gleason, Asst. in Botany, Univ. of Illi- 

 nois, John St., Champaign, 111. 



Gustavus E. Gordon, Scientific Director, "Walker- 

 Gordon Laboratory Co., 1120 Conn. Ave. N. W., 

 Washington, D. C. 



Professor H. A. Gossard, Professor of Entomology, 

 Agric. Coll., Lake City, Fla. 



H. P. Grabill, Student of Chemistry, Drake Uni- 

 versity, 1004 Anas Ave., Des Moines, Iowa. 



U. S. Granb, Northwestern University, Evanston, 

 111. 



Willis H. Grant, Teacher of Chemistry and Geol- 

 ogy, Academic High School, Pittsburg, Pa. 



Clarence S. Hammatt, Electrical and Mechanical 

 Engineer, Jacksonville, Fla. 



Everhart P. Harding, Asst. in Chemistry, Univ. of 

 Minnesota, Minneapolis, Minn. 



R. H. Harper, M.D., Practicing Physician, Afton, 

 Indian Territory. 



J. Campbell Harris, 119 S. 16th St., Philadelphia, 

 Pa. 



Samuel T. Hensel, Chemist, 801 East Colfax Ave., 

 Denver, Colo. 



John W. Heston, Pres. S. D. Agri. College, Brook- 

 ings, S. D. 



Charles N. Hewitt, M.D., Secy. State Board of 

 Health, Red Wing, Minn. 



Geo. M. Holferty, Instructor in Botany, Univ. of 

 111., 931 W. Green St., Urbana, 111. 



A. M. Holmes, M.D., Jackson Block, Denver, Colo. 



Samuel J. Holsinger, Special Agt. Interior Dept., 

 Tucson, Arizona. 



Walter D. Hunter, Entomologist, Victoria, Texas. 



Elsworth B, Knerr, Midland College, Atchison, 

 Kansas. 



Andrew C. Lawson, Prof, of Geology and Mineral- 

 ogy, Univ. of California, Berkeley, Cal. 



Henry C. Lay, Mining Engineer and Geologist, 

 Telluride, Colo. 



William G. Lee, 7 Littles, Cambridge, Mass. 



Mrs. Julia A. Lender, 2201 Lincoln Ave., Denver, 

 Colo. 



Percy A. Leonard, Editor and Manager Ores atid 

 Metah, P. 0. Box 304, Denver, Colo. 



Edwin H. Lockwood, Assistant Professor Mechanic- 

 al Engineering, Yale University, New Haven, Conn. 



Geo. D. Louderback, Professor of Geology, Nevada 

 State University, Reno, Nevada. 



J. R. Lovejoy, Electrician, 811 Union St., Schenec- 

 tady, N. Y. 



Otto J. J. Luebkert, Bureau of Forestry, Dept. 

 Agriculture, Washington, D. C. 



D. W. McGee, Farley, Iowa. 



Howard L. McLaury, Professor of ilathematics and 

 Physics, South Dakota School of Mines, Rapid City, 

 S. D. 



John W. Mahin, Teacher in Manual Training High 

 School, 1411 16th Ave., Denver, Colo. 



Fredrick Wra. Mally, Entomologist, Orchardist and 

 Nurseryman, College Station, Texas. 



Amos L. Mason, M.D., Physician to Boston City 

 Hospital, York Harbor, Maine. 



Dr. J. A. Mathews, Chemist and Metallurgist, 4 

 First Place, Brooklyn, N. Y. 



Elmer D. Merrill, Assistant Agrostologist, U. S. 

 Dept. Agriculture, Washington, D. C. 



Ralph D. Mershon, Consulting Engineer, 621 

 Broadway, New York, N. Y. 



Mrs. Cornelia Miles, Principal Broadway School, 

 1544 Franklin St., Denver, Colo. 



Armand R. Miller, Professor of Chemistry, Manual 

 Training High School, Kansas City, Mo. 



E. J. Molera, Civil Engineer, 606 Clay St., San 

 Francisco, California. 



Hart Momsen, Chief Clerk, Division of Agricul- 

 ture, Census Office, Washington, D. C. 



Stanley H. Moore, Director Manual Training Dept.. 

 Manual Training High School, Kansas City, Mo. 



Horatio N. Parker, Biologist to Metropolitan 

 Water Board, 24 Wendell St., Cambridge, Mass. 



Arthur L. Patton, Instructor in Physics and Chem- 

 istry, State Preparatory School, Boulder, Colo. 



Jesse Pawling, Jr., Instructor in Physics, Central 

 High School, Philadelphia, Pa. 



Mrs. Lucy E. Peabody, 1430 Corona St., Denver, 

 Colo. 



Harold Priestraan, Electrician, care of Westing- 

 house Elec. Co., Pittsburg, Pa. 



Mrs. Mary L. D. Putnam, President Davenport 

 Academy of Sciences, 2013 Brady St., Davenport, 



la. 



T. A. Rickard, Mining Engineer and Geologist, 

 University Club, Denver, Colo. 



John M. Roberts, Principal High School, Marshall, 

 Mo. 



