AMERICAN MEN OF SCIENCE 



167 



and asst. to pres, Sawyer-Man Elec. Co, 87- 

 88; engineer and supt. of construction, West- 

 inghouse Elec. and Mfg. Co, 88-89; consulting 

 engineer, Phila, Boston and N. Y. City, 89- 

 Exec. officer in various companies. A. A; Math. 

 Soc; Civil Eng; Elec. Eng; Mech. Eng; Min. 

 Eng; Naval Archit. and Marine Eng; Naval 

 Eng; Heat, and Vent. Eng; Franklin Inst; 

 West. Soc. Eng; N. Y. Acad; Can. Soc. Civil 

 Eng; British Iron and Steel Inst; British 

 Inst. Elec. Eng; Scottish Inst. Eng. and Ship- 

 builders; N. of England Inst. Min. and Mech. 

 Eng; Irish Inst. Civil Eng; New South Wales 

 Eng. Ass, and other American and foreign so- 

 cieties. Eailroad and street railway engineer- 

 ing, operation and management. 



Davis, Rear Admiral C(harles) H(enry), U. S. N, 



Navy Department, Washington, D. C. Astron- 

 omy. Cambridge, Mass, Aug. 28, 45. Grad, 

 U. S. Naval Acad, 64. All grades from ensign 

 to rear admiral, U.S.N, 61-; supt, U. S. Naval 

 Observatory, 97-02 (except April-Sept, 98). 

 Divisional commander, battle ship squadron. 

 North Atlantic fleet, U.S.N. A.A; Wash. 

 Philos. Soc; hon. mem. Soc. Astron. de Mex. 

 Differences of longitude measured by use of sub- 

 marine cables. 



Davis, Dr. D(avid) J(ohn), 721 Elmwood Ave, 

 Wilmette, 111. Pathology. Eacine, Wis, Aug. 9, 

 75. B.S, Wisconsin, 98; M.D, Rush Med. Col, 

 03, fellow, 03-04, research student, McCormick 

 Inst, for Infectious Diseases, 04-05, Ph.D, Chi- 

 cago, 05. Instr. path, and med. Rush Med. 

 Col; prof. path, and bad. and head of dept, 

 Illinois. Pathologist. Presb, St. Joseph and 

 St. Luke's Hospitals, Chicago. A.A; Ass. Path, 

 and Bact; Soc. Clin. Invest; Am. Med. Ass. 

 The spinal cord; influenza infections; bacteriol- 

 ogy of meningitis; bacteriology of whooping 

 cough; urinary infections; pathology of sporo- 

 trichosis. 



Davis, Prof. Donald W(alton), College of William 

 and Mary, Williamsburg, Va. Zoology. Frazer, 

 Pa, Feb. 25, 82. A.B, Harvard, 05, Ph.D, 13. 

 Asst. zool, California, 05-06; prof, biol, Sweet 

 Briar, 07-09 ; instr, Radcliffe, 09-12 ; asst. prof, 

 Clark, 12-14; prof, biol, De Pauw, 14-16; sool, 

 William and Mary, 16-17, 19- A.A. Genetics; 

 asexual reproduction in sea anemones; inheri- 

 tance in Impatiens. 



Davis, Dr. George G(ilbert), 122 S. Michigan 



Boulevard, Chicago, 111. Surgery. Jan. 4, 79. 

 A.B, Chicago, 01, M.D, Rush Med. Col, 04. 

 Assoc, prof, surg, Univ. Philippines, 13-14; 

 asst. prof. Rush Med. Col, 19 ; attending surgeon, 

 CooTc Co. Hasp; chief surgeon. III. Steel Co. 

 Surgeon, Philippine Gen. Hosp; civil surgeon and 

 hon. lieut. col, Royal Army M.C, 15-16; major, 

 M. C, 17-19, lieut. col, 19; assoc. attending 

 physician, Presb. Hosp, Chicago. Col. Surg; 

 Am. Med. Ass. Cancer. 



Davis, Prof. Geo (rge) Jacob, Jr, University of 

 Alabama, University, Ala. Engineering. Wash- 

 ington, D. C, June 28, 76. C.E, Cornell, 02. 

 Instr. civil eng, Wisconsin, 02-03, hydraulic eng, 

 05-07, asst. prof, 07-12; prof, civil eng. and 

 dean, col. eng, Alabama, 12- Research asst. 

 hydraulics, Wisconsin, summers, 13, 14. Civil 



Eng; Eng. Educ; Water Works Ass. Experi- 

 mental hydraulics; sewage treatment. 

 Davis, Prof. Grace E(vangeliiic), 8 Norfolk Ter- 

 race, Wellesley, Mass. Physics. North Chelms- 

 ford, Mass, June 6, 70. A.B, Wellesley, 98, A.M, 

 05. Instr. physics, Wellesley, 99-08, assoc. 

 prof, 08- A.A; Physical Soc. 



Davis, Dr. Harold S(inunonds), Mellon Institute, 

 Pittsburgh, Pa. Chemistry. Clifton, N. S, 

 April 19, 89. B.A, Dalhousie, 10, M.A, 12; 

 Ph.D, Harvard, 14. Demonstrator physics, Dal- 

 housie, 10-12; lecturer chem, Manitoba, 14-18; 

 head, research dept, Koppers Co, Mellon Inst, 

 18-19, fellow, 19- Chem. Soc. Solutions; ther- 

 mochemistry; light oil recovery; sulphur. 



Davis, Prof. Harvey N(athaiilel), 19 Ash St, 

 Cambridge, Mass. *P]iysics. Providence, R. i, 

 June 6, 81. A.B, Brown, 01, A.M, 02; Harvard, 

 03, Ph.D, 06. Instr. math. Brown, 01-02; 

 physics and math, Harvard, 05-10, asst. prof, 

 physics, 10-19, prof. mech. eng, 19- Engineer, 

 Gen. Elec. Co, 17-18; with A. S, U.S.A, 18- 

 19. A.A; Physical Soc; Math. Soc; Am. Acad; 

 Wash. Acad. Thermal properties of matter. 



Davis, Dr. H(erbert) B(umham), 3202 Iowa St, 

 Pittsburgh, Pa. Psychology. Charlestown, 

 Mass, Aug. 17, 67. A.B, Bates, 90; Ph.D, Clark, 

 08. Principal, Southwestern State Nor. Sch, 

 California, Pa, 09-12; Pittsburgh Training Sch. 

 for Teachers, 12- Special agent, Pa. Dept. 

 Health. A.A; Psychol. Ass. Experimental 

 psychology and pedagogy-; the raccoon, a study 

 in animal intelligence; minute structure of the 

 axis cylinder; time reaction in binocular vision; 

 tests for intellectual level in children in the ele- 

 mentary school; measurement of fatigue by 

 ciliary muscle; adult learning tests. 



Davis, Prof. H(erbert) P(erry), Moscow, Idaho. 

 Dairy husbandry. Montagu, Mich, Aug. 22, 89. 

 B.S.A, Missouri, 11; M.S, Pa. State, 14. Asst. 

 dairy husbandry, Illinois, 11; asst. and later 

 instr. exp. dairy husbandry and ed, dairy 

 div, U. S. Dept. Agr, 14-19; prof, dairy hus- 

 bandry, Idaho, and v. director, Exp. Sta, 19- 

 A.A ; Dairy Sci. Ass ; . West. Dairy Instr. Ass. 

 Feeding, management and genetics of dairy 

 cattle. 



Davis, Prof. H(erbert) S(pencer), Gainesville, 

 Fla. Zoology. Oneida, N. Y, March 28, 75. 

 Ph.B, Wesleyan, 99; Ph.D, Harvard, 07. Instr. 

 sool, Wash. State, 01-04, asst. prof, 0-1^06; 

 prof, Florida, 07- Investigator, Bur. Fisheries. 

 A.A; Soc. Zool; Micros. Soc. Parasitology; 

 spermatogenesis; parasites of fishes. 



Davis, Dr. Herman S (teams), 4323 Andover Ter- 

 race, Pittsburgh, Pa. * Astronomy. Milford, 

 Del, Aug. 6, 68. A.B, Princeton, 92, A.M, 12; 

 fellow, Columbia, 93-95, A.M, 94, Ph.D, 95. 

 Asst. astronomer, U. S. scientific exped. to W. 

 Africa, 89-90; tutor astron. and geod, Columbia, 

 95-99; in charge, Int. Latitude Observatory, 

 00-05; consulting engineer, Oo- Expert com- 

 puter and asst, U. S. Coast and Geod. Surv, 00 ; 

 first asst, Allegheny Observatory eclipse exped, 

 00; assoc. ed, 'Astron. Jahresbericht, ' 00-17. 

 A.A; Astron. Soc; Wash. Philos. Soc; Astron. 

 Gesell. Variation of latitude; constant of aber- 

 ration; mean star positions and proper motions; 

 the historv of astronomy; new reduction of 



