176 



AMERICAN MEN OF SCIENCE 



Derick, Prof. Carrie M, McGill University, Mont- 

 real, Can. Botany. Clarenceville, Que. A.B, 

 McGill, 90, A.M, 96; Woods Hole, 9o, 96, 97, 

 00; Eoyal Col. Science, London, 9S ; Bonn, 01- 

 02. Demonstrator bot, McGill, 91-95, lecturer, 

 96-04, asst. prof, 04-07, acting-head of dept, 

 10-12, prof, morphol. hot, 12- A.A; Bot. Soc; 

 Soc. Nat. Holdfasts of the Rhodophyceae; nu- 

 clear changes in growing seeds; anabiosis; nu- 

 clear differences between resting and active cells. 



Derick, Dr. C(larence) G(eorge), National Ani- 

 line and Chemical Co, Buffalo, N. Y. *Chemistry. 

 Sutton, Que, Oct. 29, 83. B.S, Worcester, 06; 

 Mass. Inst. Tech, 06-07; M.S, Illinois, 09, Ph.D, 

 10. Research asst. org. chem, Mass. Inst. Tech, 

 06-07 ; lecturer and research asst, Illinois, 07-08, 

 asst, 08-10, instr, 10; with Nat. Aniline and 

 Chem. Co, 16- A.A; Chem. Soc; 111. Acad. 

 Water-proofing of concrete; rearrangements in 

 organic chemistry; thermo-dynamic positivity 

 and negativity. 



Derickson, Prof. S(amuel) H(offman), Lebanon 

 Valley College, Annville, Pa. Biology. New- 

 port, Pa, April 9, 79. B.S, Lebanon Valley, 

 02, M.S, 03; Hopkins; Brooklyn Inst; Tropical 

 Bot. Lab, Jamaica. Prof. biol. sciences, Leb- 

 anon Valley, 04-, acting pres, 12. Land zoolo- 

 gist, exped. to Bahamas, 04. A.A; Bot. Soc; 

 Phytopath. Soc. 



Derleth, Prof. C(harles), Jr, University of Cali- 

 fornia, Berkelev, Calif. Civil engineering. New 

 York, N. Y, Oct. 2, 74. B.S, Col. City of N. Y, 

 94; C.E, Columbia, 96. Asst. civil eng, Colum- 

 bia, 96-99, lecturer, 99-01; prof, Colorado, 02- 

 03; assoc. prof, structural eng, California, 03- 

 07, prof, civil eng. and dean, col. civil eng, 08- 

 Instr. math, and drawing, evening schools, N. Y, 

 96-99 ; instr, summer sch. surv. and geod, 

 Columbia, 96-00 ; consulting engineer. Civil 

 Eng; Soc. Test. Mat; Eng. Educ. Structural 

 engineering. 



Derr, Dr. Homer MCunroe), Minneapolis, Mirui. 

 Physics, Geology. Turbotville, Pa, Feb. 5, 

 72. A.B, St-anford, 98; A.M, Columbia, 01; 

 Tyndale fellow, Pennsylvania, 01-03, Ph.D, 03. 

 Asst. physics, Columbia, 99-01 ; instr. geol. and 

 mining, Wyoming, 01-02 ; supt, Santa Margarita 

 Gold Mining Co, Columbia, S. Am, 03-04; prof, 

 physics and geol, Epworth. 04-05; math, and 

 civil eng, Thomas S. Clarkson Mem. Sch. Tech, 

 05-07; civil eng, S. Dak. Col, 07-13; state engi- 

 neer, S. Dak, 13-20. Inst, math, Palo Alto Sum- 

 mer Sch, 98; engineer, S. Dak. R. D. Commis- 

 sion, 08-10. Geol. Soc; Civil Eng; Min. Eng. 

 Petrographic analysis; siliceous oolites of Sweet- 

 water County, Wyo. 



Derr, Prof. Louis, 83 Center St, Brookline, Mass. 

 Physics. Pottsville, Pa. Aug. 6, 68. A.B, Am- 

 herst, 89, A.M, 92; B.S, Mass. Inst. Tech, 92. 

 Asst. physics, Mass. Inst. Tech, 92-93, instr, 93- 

 01, asst. prof, 01-04, assoc. prof, 04-09, prof, 

 09- Physical Soc; Astron. Soc; Optical Soc; 

 Am. Acad; Royal Photog. Soc. Photography. 



Dershem, Dr. Elmer, 2507 Webster St, Berkeley, 

 Calif. Physics. Norwood, Kans, Dec. 31, 81. 

 B.S, Kansas, 12; M.S, Iowa, 15, Ph.D, 17. 

 Asst. physics, Iowa, 14-17 ; instr. astron, Illi- 

 nois, 17-19; physics, California, 19- Assoc. 



Physical Soc; assoc. Elec. Eng; Astron. Soc. 

 X-rays; photo-electric photometry. 

 Desha, Prof. L(ucius) J(unius), Washington and 

 Lee University, Lexington, Va. Chemistry. 

 Cynthiana, Ky, June 14, 83. A.B, Washington 

 and Lee, 06; Ph.D, Hopkins, 09. Chemist, Tenn. 

 Food and Drugs Inspection, 09-12; prof. gen. 

 and biol. chem, col. med, Tennessee, 12-20, act- 

 ing dean, 17, registrar-bursar, 19-20; prof, chem, 

 Washington and Lee, 20- Capt, Sanit. C, 17- 

 19. A.A; Chem. Soc. Drug analysis; applica- 

 tions of chemistry to clinical diagnosis; hydro- 

 gen electrode ; fluoremetry. 



Detjen, L(ouis) R(einhold), West Raleigh, N. C. 

 Horticulture. Algoma, Wis, Feb. 27, 84. B.S, 

 Wisconsin, 09; M.S, N. C, Col, 11. Asst. horti- 

 culturist, N. C. Col, 09- Asst. nursery inspec- 

 tor, Wisconsin, summer, 09. Soc. Hort. Sei; N. 

 C. Acad. Sterility in fruits; pollination; breed- 

 ing of grapes. 



Detlefsen, Prof. (John) A, University of Illinois, 



Urbana, 111. Zoology. Norwich, Conn, Sept. 12, 

 83. A.B, Dartmouth, 08; A.M, Harvard, lO; 

 Se.D, 12. Austin teaching fellow. Harvard. 08- 

 12; asst. prof, genetics, Illinois, 12-18, assoc. 

 prof, 18-19, prof, 19- A.A; Soc. Nat; Soc. 

 Zool; Ky. Acad. Genetics; coat color, size, 

 growth and fertility in mammals and mammalian 

 species crosses; heredity and breeding in do- 

 mestic animals. 



Detmers, Dr. Freda, Ohio State University, Co- 

 lumbus, Ohio. Plant pathology. Dixon, 111, 

 67. B.S, Ohio State, 87, M.S, 91, Ph.D, 12. 

 Asst. botanist, Ohio Exp. Sta, 90-93; iristr. 

 bot, Ohio State, 07-, asst. botanist, Exp. Sta, 

 IS- A.A; Bot. Soc; Phytopath. Soc; Ohio 

 Acad. Anthracnose of wheat; potato diseases. 



DeTurk, Prof. E(mest) E, 707 W. Green St, 

 Urbana, 111. Agricultural chemistry. Martins- 

 ville, Ind, Sept. 24, 87. B.S.A, Purdue. 13; 

 M.S, Pa. State, 16; fellow, Illinois, 17-19, Ph.D, 

 19. Asst. agr. chem, Pa. State, 13-14, instr, 14- 

 16, asst. prof, 16-18; assoc. soil fertility, Illi- 

 nois, 19-20, asst. prof, 20- A.A; 111. Acad. 

 Soil potassium; soil fertility. 



Detwiler, Samuel B(ertolet), U. S. Department 

 of Agriculture, Washington, D. C. Forestry. 

 Mont Clare, Pa, Sept. 18, 81. B.S.F, Minnesota, 

 06 ; Yale, 01-02. Forest asst, U. S. Forest Serv- 

 ice, 06-07 ; asst. prof, forestry, Minnesota, 07- 

 08; forester, Forest Products Co, 08-11; gen. 

 supt, Pa. Chestnut Tree Blight Commission, 11- 

 13; forest engineer, 13-16; forest pathologist 

 in charge, office blister rust control, TJ. S. Dept. 

 Agr, 16- Ecol. Soc; Phytopath. Soc; Soc. For- 

 esters. Sanitation cutting in controlling chest- 

 nut blight. 



Detwiler, Dr. S(amuel) K(andall), Peking Union 

 Medical College, Peking, China. Anatomy. Iron- 

 bridge, Pa, Feb. 17, 90. Ph.B, Y^ile, 14, A.M, 

 16, Ph.D, 18. Asst. instr. biol, Yale, 14-17, 

 instr. anat, 17-20; assoc, Peking Union Med. 

 Col, 20- Junior physiologist, Bur. Mines, 17- 

 18. A.A; Ass. Anat; Soc. Zool. \Retinal physi- 

 ology; experimental morphogenesis of the pe- 

 ripheral nervous system. 



Deussen, Alexander, Stewart Building, Houston, 

 Tex. Geology. San Antonio, Tex, Jan. 19, 82. 



li 



