AMERICAN MEN OF SCIENCE 



193 



Hort. Sci. (asst. sec'y, 16); Vegetable Growers 

 Ass. (sec'y, committee on nomenclature, 13-). 

 Olericulture ; plant breeding. 



Durward, Arthur, Laverne, Calif. Physics, Aber- 

 deen, Scotland, Dec. 23, 70. B.S, Colorado, 93; 

 B.S.(Eng), Harvard, 95, A.M, 97. Instr. sci- 

 ence, high sch, Hanford, Calif, 98-02; Pomona, 

 02-07; principal, Bonita Union High Sch, 07-20. 

 A. A. Magnetism; effect of temperature on 

 certain magnets. 



Dury, Charles, 537 Eidgeway Ave, Cincinnati, Ohio. 

 Entomology, Ornithology. Cincinnati, Nov. 14, 

 47. Pub. sch. Audubon Soc. (trustee, 05-) ; 

 Ohio Acad, (pres, 07) ; Cincinnati Soc. Nat. 

 Hist, (pres, 97, sec'y, 08); Cincinnati Cuvier 

 Club (trustee, 06-). North American Coleoptera. 



Duschau:, Dr. L(ionel) H(erman), 1301 Tamalpais 

 Eoad, Berkeley, Calif. Chemistry. Buffalo, N. 

 Y, Sept. 25, 82. A.B, Michignn, 04; A.M, Ph.D, 

 Princeton, 08. Asst. physical chem, Michigan, 

 04-05; chem, Princeton, 05-07, instr, 07-09; 

 research chemist, Corning Glass Works, 09-13; 

 chem. engineer in charge Exp. Sta, U. S. Bur. 

 Mines, 13- Asst. physical chem, Michigan, 

 summer, 05, 06, instr. anal, chem, summer, 08. 

 A.A; Chem. Soc; Min. and Metal. Eng; Elee- 

 trochem. Soc. Physical chemistry; chemical 

 metallurgy; mixed precipitates and isomorphoua 

 mixtures; the silver coulometer; glass and fire 

 clay. 



Dusham, Prof. E(dward) H(enry), State College, 

 Pa. Entomology. Amesbury, Mass, Sept. 1, 

 87. A.B, Dartmouth, 10; M.S, Pa. State, 15. 

 Asst. zool. and physiol, Iowa State, 10-12, instr. 

 zool. and entom, 12-14, asst. prof, 15-16; asst. 

 biol, Cornell, 16-17, instr. nat. hist, 17-18; 

 entom. inspector, fed. hort. board, U. S. Dept. 

 Agr, 18; prof, entom, Fa. State, 18- A.A; 

 Entom. Soc; Ass. Econ. Entom; Wash. Entom. 

 Soc. Insect morphology; economic entomology. 



Dushman, Dr. Saul, General Electric Co, Schenec- 

 tady, N. Y. *Physical chemistry. Rostov, Rus- 

 sia, July 12, 83. B.A, Toronto, 04, Ph.D, 12. 

 Demonstrator electrochem, Toronto, 04-09, lec- 

 turer, 09-12; with research lab, Gen. Eleo. Co, 

 12- A.A; Physical Soc; Chem. Soc; Soc. Chem. 

 Indust; Elec. Eng; Bunsen Gesell. Electro- 

 chemistry; determination of e/m; molecular 

 gage ; photoelectric cell ; electronics ; atomic 

 structure; quantum theory. 



Dustheimer, Prof. Oscar L(ee), Baldwin-Wallace 

 College, Berea, Ohio. Mathematics. Near New- 

 ark, Ohio, Oct. 3, 89. B.S, Ohio (Athens), 13; 

 fellow, Clark, 13-14, A.M, 14. Teacher, Pataa- 

 kala High Sch, Ohio, 10-11; prof. math, and 

 astron, Baldwin-Wallace, 14- A.A; Math. Soc. 

 Determinants. 



Dutcher, Dr. John B(enjanun), Indiana Univer- 

 sity, Bloomington, Ind. Physics. Decatur, Ind, 

 July 17, 75. A.B, Indiana, 06, A.M, 07, Ph.D, 

 15. Instr. physics, Indiana, 07-08; Pennsylva- 

 nia, 08-09; asst. prof, Indiana, 09-15, assoc. 

 prof, 15- Physical Soc; fel. Ind. Acad. Pos- 

 sible change in weight due to certain chemical 

 reactions; recalescence in Heusler alloys; ex- 

 plosion wave in gases. 



Dutcher, Prof. R(aymond) Adams, University 

 Farm, St. Paul, Minn. Biochemistry. Ray- 

 mond, S. Dak, March 28, 86. B.S, S. Dak. Col, 

 13 



07, M.S, 10; A.M, Missouri, 12. Instr. chem, 

 S. Dak. Col, 07-10; asst, Missouri, 10-12; Illi- 

 nois, 12-13; instr. and asst. prof, biochem, Ore- 

 gon Col, 13-17; asst. prof, Minnesota, 17-18, 

 assoc. prof, biochem. and head, sect, animal nu- 

 trition, IS- A.A; Cliem. Soc. Vitamins; defi- 

 ciency diseases. 



Duval, Prof, Charles W(arren), Tulane Univer- 

 sity, New Orleans, La. Pathology. Annapolis, 

 Md, Sept. 28, 76. St. John's (Md), 97, hon. 

 A.M, 09; Rockefeller fellow, Pennsylvania, 02- 

 03, M.D. 03. Path, house officer, Boston City 

 Hosp, 03-04, asst. path, 04-06; lecturer path, 

 and bacter, McGill, and director, path, lab, 

 Montreal Gen. Hosp, 07-08; prof. path, and 

 bacter, Tulane, 09- Director, path, lab, Charity 

 Hosp, New Orleans, 13. A.A; Soc. Exp. Path; 

 Ass. Path, and Bact; Soc. Bact; Soc. Exp. Biol; 

 Am. Med. Ass; Boston Sci. Soc. Bacteriology; 

 acute bacillary dysentery; summer diarrheas in 

 infants; tuberculosis; glanders; pneumonia; 

 meningitis; leprosy; scarlet fever. 



Duvall, Charles R(aymond), Carnegie Institution, 

 Washington, D. C. Terrestrial magnetism. 

 Clarke Co, Va, Jan. 2, 69. B.S, West Virginia, 

 81 ; Hopkins, 92-96. Teacher math, and science, 

 McGuire's Sch, Richmond, Va, 91-92; student 

 asst. math, Hopkins, 94-95; computer, U. S. 

 Coast and Geod. Surv, 99-13 ; expert computer, 

 dept. terrestrial magnetism, Carnegie Institu- 

 tion, IS- Asst. observer, latitude variation sta. 

 Int. Geod. Ass, Gaithersburg, Md, 13. A.A; 

 Wash. Philos. Soc. Geodesy; gravity; least 

 squares; hidden periodicities. 



Duvall, Prof. T(rumbull) G(illette), 144 N. Frank- 

 lin St, Delaware, Ohio. Philosophy, Psychology. 

 Indianapolis. Ind, March 20, 61. A.B, De 

 Pauw, 88; S.T.B, Boston, 89, Ph.D, 92. Instr. 

 philos, De Pauw, 92-95, prof, 95 ; Ohio Wes- 

 leyan, 95-, dean of faculty, 00-05. Psychol. 

 Ass; West. Philos. Ass. Psychology and logic 

 of cognition; psychology of religion. 



Duvel, Dr. J(oseph) W(illiam) T(ell), 745 Grain 



Exchange, Winnipeg, Can. Botany. Wapakoneta, 

 Ohio, Nov. 16, 73. B.S, Ohio State, 97; fellow, 

 Michigan, 99-02, Sc.D, 02. Asst. botanist, Ohio 

 Exp. Sta, 98-99 ; asst, seed lab, U. S. Dept. Agr, 

 02-07, in charge grain standardization, 08-18; 

 grain expert, U. S. Grain Corp, 18-20; grain 

 merchant, 20- A.A; Wash. Bot. Soc. (v. 

 pres, 16); Wash. Biol. Soc; Int. Ass. Bot. 

 Vitality of seeds ; respiration in dry seeds ; ef- 

 fect of gases on vitality; cold storage of cow- 

 peas; storage and germination of wild rice; 

 germination, harvesting and storing of seed- 

 corn; moisture in grain; deterioration of grain 

 in storage; handling grain in Australia. 



Dwight, Dr. Jonathan, 43 W. 70th St, New York, 

 N. Y. Zoology. New York, Dec. 8, 58. A.B, 

 Harvard, 80; M.D, Columbia, 93. Physician, 

 93- A.A; fel. Ornith. Union (treas) ; Nat. Ass. 

 Audubon Soc. (treas); Am. Geog. Soc; fel. N. 

 Y. Acad; N. Y. Linnean Soc. (pres). 



Dyar, Dr. Harrison G(ray), U. S. National Mu- 

 seum, Washington, D. C. *Biology, Entomology. 

 New York, N. Y, Feb. 14, 66. B.S, Mass. Inst. 

 Tech, 89; A.M, Columbia, 94, Ph.D, 95. Asst. 

 bacter, Col. Physicians and Surg, Columbia, 95- 

 97; custodian of Lepidoptera, TJ. S. Nat. Mu- 



