168 



AMERICAN MEN OF SCIENCE 



Piazzi 's observations ; biographical cyclopedia 

 of astronomers; bibliography of current astro- 

 nomical literature in the United States; ge- 

 nealogy. 



Davis, John A (lien), Mining Experiment Station, 

 Fairbanks, Alaska. Mining engineering. Sioux 

 City, Iowa, June 13, 84. B.S, Mass. Inst. Tech, 

 07. Junior and asst. geologist, U. S. Geol. 

 Surv, 07-11; asst. mining engineer, U. S. Bur. 

 Mines, 11- Min. Eng. Modern tunneling, with 

 special reference to mine and water supply tun- 

 nels; safety and efEcienc.y in mine tunneling; 

 mining and concentration of carnotite ores; geol- 

 ogy of the Little Powder Piver coal field. 



Davis, Dr. J(ohn) J(efferson), University of WiB- 

 consin. Madison, Wis. Mycology. Davis, 111, 

 52. B.S, Illinois, 72 ; M.D, Hahnemann Med. 

 Col, Chicago, 75. Medical practitioner, 75-11; 

 curator, herbarium, Wisconsin, 11- A. A; Bot. 

 Soc; Phytopath. Soc; Wis. Acad, (pres, 02-05) ; 

 Wis. Archeol. Soc. Mycology; parasitic fungus 

 flora of Wisconsin. 



Davis, John J(une), Agricultural Experiment Sta- 

 tion, La Fayette, Ind. Entomology. Centralia, 

 111, Oct. 9, 85. B.S, Illinois, 07. Insectary asst. 

 to state entomologist. 111, summers, 05, 06; asst. 

 entom, Illinois, 06-07; asst. to state entomolo- 

 gist, 111, 07-11; in charge, La Fayette, Ind, Lab, 

 tJ. S. Dept. Agr, 11-19, Japanese beetle control 

 project, 19-20; head, dept. entom, Furdue, and 

 Agr. Exp. Sta, 20- A. A; Asa. Econ. Entom; 

 Entom. Soc ; 111. Acad. Aphididae ; green house, 

 truck garden, cereal and forage crop insects. 



Davis, Dr. John Staige, 1200 Cathedral St, Balti- 

 more, Md. Surgery. Norfolk, Va, Jan. 15, 72. 

 Ph.B, Yale, 95 { M.D, Hopkins, 99. Assoc, din. 

 surg, HopJcins. Dispensary surgeon and asst. 

 visiting surgeon, Hopkins Hosp. Am. Med. Ass; 

 Surg. Ass. Plastic surgery; transplantation of 

 tissues. 



Davis, Prof. K(ary) C(admus), George Peabody 

 College for Teachers, Nashville, Tenn. Agri- 

 culture. Decatur, 111, Oct. 7, 67. B.S, Kansas 

 State, 91. M.S, 94; Kansas State Nor. Sch, 92; 

 Ph.D, Cornell, 00. Principal and science 

 teacher, State High Sch, Austin, Minn, 92-98; 

 prof. bot. and biol, State Nor. Sch, St. Cloud, 

 00-01 ; prof. hort. and instr. bot. West Virginia, 

 and Exp. Sta, 01-02; principal, Dunn Co. Sch. 

 of Agr. and Domestic Econ, Menomonie, Wis, 

 02-07; dean, State Sch. Agr. Canton, N. Y, 07- 

 08 ; prof, soils and agron. and principal, agr. 

 short courses, N, J, Col, 08-13; agr, Peabody 

 Col. for Teachers, 14- Instr. agr. and nature 

 study, summer sch, Virginia, 08-12. A. A. 

 Agricultural education; farm manuals and farm 

 life text books. 



Davis, Lewis, 1454 Fairmount Ave, St. Paul, Minn. 

 Biological chemistry. Worcester, Mass, Mav 15, 

 89. B.S, Worcester, 11; M.S, Mass. Inst. Tech, 

 12. Chemist, N. J. State Lab. Hygiene, 12; 

 biol. chemist, Parke, Davis and Co, 12-20; as.foc. 

 lab. director, Beebe Laboratories, Inc, 20- 

 Cliem. Soc; Soc. Bact; Pul). Health Ass. Ultra- 

 violet sterilization; chemical indicators of mi- 

 crobial life; peptone; diphtheria toxin; pepsin; 

 concontraf ion of serutn ; pollen. 



Davis, Dr. N(athan) S(mith), Jr, Pasadena, Calif. 

 Medicine. Chicago, 111, Sept. 5, 58. A.B, North- 



western, 80, A.M, 83; M.D, Chicago Med. Col, 

 83; Heidelberg and Vienna, 85. Assoc, prof. 



?iath, Chicago Med. Col, 84; principles and prac- 

 ise of med. Northwestern, 86, prof, principles 

 and practise of med. and clin. med, 86-20. For- 

 merly physician, St. Luke 's, Mercy and Wesley 

 Hospitals; consultant, Washingtonian Home and 

 Marion-Sims Hosp; trustee, Northwestern; Chi- 

 cago Y. M. C. A; V. pres, U. S. Pharmacopoeia 

 Convention. Ninth Int. IMed. Cong; Pan-Am. 

 Med. Cong. A.A; Am. Med. Ass. (scc'y, sect, 

 med, and chairman, sect, therapeut) ; Climat. 

 Ass; Therapeut. Ass; Chicago Acad. (rec. sec'y, 

 librarian). Batrachia and Reptilia of eastern 

 North America ; medical books. 



Davis, Prof. Nathaniel F(rench), 27 Everett St, 

 Cambridge, Mass. Mathematics. Laconia. N. H, 

 June 11, 47. A.B, Brown, 70, A.M, 73; Gottin- 

 gen, 92-93; LL.D, Colby, 94. Instr, Riverview 

 Mil. Acad, Poughkeeepsie, N. Y', 71-73 ; v. prin- 

 cipal a^d prof. math, and physics, State Nor. 

 Sch, Kutztown, Pa, 73-74; instr. math. Brown, 

 74-79, asst. prof, 79-89, assoc. prof, 89-90, 

 prof, pure math, 90-15, cmer. prof, 15- Scc'y, 

 New Eng. Col. Entrance Certificate Board, 02- 

 13, pres, 13-15. A.A; Math. Soc; Math. Ass; 

 New Eng. Ass. Math. Teachers (v. pres. 06). 



Davis, Prof. Nelson F(ithlan), Lewisburg, Pa. 

 Botany. Seeley, N. J. B.S, Bucknell, 95, M.S, 

 96, Sc.D. 03. Frof. biol, BucTcnell, 02- Instr. 

 bacter, biol. lab. Cold Spring Harbor, 98-02; 

 in charge zool, Vermont, summer, 14. A.A; Soc. 

 Nat; Bot. Soc. Economic zoology; forestry; 

 chestnut culture. 



Davis, Dr. Paul B(ell), Davison Chemical Co, 

 Baltimore, Md. Chemistry. West Liberty, Ohio, 

 Aug. 15, 89. A.B, Eoanoke, 08, A.M, 09; Ph.D, 

 Hopkins, 12. Asst. chem, Hopkins, 13-14, instr, 

 14-16, assoc, 16-19; research chemist, Davison 

 Chem. Co, 19- Research assoc, Carnegie Insti- 

 tution. 16-17. Chem. Soc. Viscosity; silicic 

 acid gels. 



Davis, Prof. Roland P(arker), 16 Demain Ave, 

 Morgantown,W.Va. Civil engineering. Beverly, 

 Mass, Aug. 2, 84. B.S, Mass. Inst. Tech, 06; 

 M.C.E, Cornell, OS, Ph.D, 14. Draftsman, Am. 

 Bridge Co, 06-07 ; instr. civil eng, Cornell, 08- 

 11; assoc. prof, West Virginia, 11-12, prof, 12- 

 Bridge engineer, W. Va. State Road Commission, 

 14- Civil Eng; Eng. Educ; R. R. Eng; Soc. 

 Test. Mat. Foundations of bridges and build- 

 ings; concrete; structural and hydraulic engi- 

 neering. 



Davis, Dr. E(oyall) O(scar) E(ugene) U. S. De- 

 partment of Agriculture, Washington, D. C. 

 Chemistry. Newberry, S. C, Julv 11, SO. Ph.B, 

 North Carolina, 01, Ph.D, 03; Leipzig, 04. Asst. 

 anal, chem, North Carolina, 01-03, instr. phys- 

 ical chem, 03-05, gen. chem, 05-09, assoc. prof, 

 09; soil physicist, bur. soils, U. S. Dept. Agr, 

 09-12, in charge soil water investigations, 12- 

 16, scientist fertilizer investigations, and in 

 charge soil physics investigations, 16- A.A; 

 Chem. Soc. (sec'y, N. C. sect, 06-08); Soc. 

 Agron; Physical Soc; Wash. Acad; N. C. Acad. 

 Soils and fertilizers; synthesis of ammonia from 

 hydrogen and nitrogen; atomic weight of thor- 

 ium; phosphoplatinum ammonia compounds; 

 corrosion of iron ; electrical conductivity of 



