AMERICAN MEN OF SCIENCE 



169 



Council, 02-) ; Soc. Testing Materials; fel. Am. 

 Acad; Boston Soc. Civil Eng. Reinforced con- 

 crete; applied mechanics; distribution of stress 

 in the general case of flexure. Floor loads due 

 to crowds of people. 



Johnson, Prof. Otis C(oe), 730 Thayer St, Ann 

 Arbor, Mich. *Chemislry. Kishwaukee, Ills, 

 Sept. 11, 39. A.B, Oberlin, 68; Ph.C, Mich- 

 igan, 71; A.M, Oberlin, 77. Instr. chem, 

 Michigan, 71-80, asst. prof, applied chem, 80- 

 89, prof, 89- F.A.A; Chem. Soc; Mich. Phar- 

 maceut. Ass; London Chem. Soc; Chem. Gesell. 

 Originated the complete system of negative 

 valence. A scheme for qualitative analysis by 

 electricity. 



Johnson, Roswell H(ill), Cheney, Wash. Zoology. 

 Buffalo, N. Y, Oct. 9, 77. Brown, 95-96; Har- 

 vard, 96-99; B.S, Chicago, 00; M.S, Wisconsin, 

 03. Instr. zool, High Sch, Sioux Falls, 00-01 ; 

 asst. vert, anat, Wisconsin, 01-03; instr. biol. 

 and agr, State Nor. Sch, Cheney, Wash, 03-05; 

 research asst, Sta. for Exp. Evolution, Cold 

 Spring Harbor, 05- Asst. zool, Harvard and 

 Chicago. Soc. Nat; Breeders' Ass. Pods on the 

 palm and sole of the human foetus; axial bifur- 

 cation in snakes; variation and individuality of 

 the pyloric caeca. Evolutionary study of coc- 

 cinellid beetles. 



Johnson, Prof. Samuel W(illiam), 54 Trumbull 

 St, New Haven, Conn. *Chemistry. Kings- 

 boro, N. Y, July 3, 30. Sheffield Sci. Sch, Yale, 

 50-51; Leipzig, 53-54; Munich, 54-55. Instr. 

 chem, physics and human physiol, State Nor. 

 Sch, Albany, N. Y, 51-52; first asst. chem, 

 Sheffield Sci. Sch, Yale, 55-56, prof. anal, chem, 

 56-57, anal, and agr. chem, 57-74, theoret. and 

 agr. chem, 74-96, emer. prof. agr. chem, 96- 

 Assoc. ed, ' Am. Jour. Science,' 69-80 ; direc- 

 tor, Conn. Agr. Exp. Sta, 77-99. Nat. Acad; 

 Chem. Soc. (pres, 78) ; Soc. Prom. Agr. Sci; 

 Am. Acad. Agricultural chemistry. 



Johnson, Thomas H, 619 S. Negley Ave, Pitts- 

 burg, Pa. Engineering. Coshocton, O, Jan. 12, 

 41. A.B, Jefferson, 61; A.M, Washington and 

 Jefferson, 66. Principal asst. engineer, P. C. C. 

 and St. Louis Ry, 83-96, chief engineer, 96-01 ; 

 consulting engineer, Pa. Lines West, 01- Civil 

 Eng ; West. Pa. Eng. Soc ; Pittsburg Technischer 

 Verein. Transverse strength and elasticity 

 of building stones; strength of columns. 



Johnson, Dr. Treat Baldwin, Yale University, New 

 Haven, Conn. Chemistry. Bethanv, Conn, 

 March 29, 75. Ph.B, Yale, 98, Ph.D, OL Instr. 

 chem, Sheffield Sci. Sch, Yale, 01- Chem. Soc; 

 Chem. Gesell. Organic chemistry. Pyrimidin 

 derivatives; pseudo-ureas; molecular rearrange- 

 ments. 



Johnson, Prof. W(illia)m Hallock, Lincoln Uni- 

 versity, Pa. Philosophy, Greek. New York, 

 N. Y, Dec. 3, 65. A.B, Princeton, 88, A.M, 

 B.D, 97; Ph.D, Columbia, 02. Prof, logic, etc, 

 Centre, and instr. New Testament lit, Danville 

 Theol. Sem, Ky, 97-01; prof, classical and New 

 Testament Greek, Lincoln, 03- Philosophy; 

 New Testament criticism. 



Johnson, Prof. W(illiam) Woolsey, U. S. Naval 

 Academy, Annapolis, Md, and 32 E. Preston 

 St, Baltimore, Md. * Mathematics. Owego, N. 

 Y, June 23, 41. A.B, Yale, 62, A.M, 64. On 

 'Nautical Almanac' Corps, 62-64; asst. prof. 

 math, U. S. Naval Acad, 64-70; prof, Kenyon, 

 70-72; St. John's (Md.), 72-81; U. S. Naval 

 Acad, 81- Math. Soc; cor. mem. British Ass; 

 London Math. Soc. Differential calculus; inte- 

 gral calculus; curve tracing; differential equa- 

 tions; least squares; mechanics. 



Johnson, Prof. W(illis) G(rant), 52 Lafayette 

 Place, New York, N. Y. Biology, Horticulture, 

 Agriculture. New Albany, O, July 4, 66. Ohio 

 State, 84-86; Cornell, 88-91; A.B, Stanford, 92, 

 A.M, 94. Asst. entomologist, Stanford, 91-92, 

 asst. registrar, 92-94; instr. entom, Illinois, 

 and asst. state entomologist, Ills, 94-96 ; prof, 

 entom. and invert, zool, Md. Agr. Col, and state 

 entomologist, Md, 96-01 ; ed, 'Am. Agricultur- 

 ist,' 01- Diploma and gold medal, Paris 

 Expos, 00. F.A.A; Ass. Econ. Entom; Pomol. 

 Soc; Soc. Prom. Agr. Sci; N. Y. Entom. Soc; 

 Wash. Biol. Soc. General ecological problems 

 as related to horticulture and agriculture. 



Johnston, Clarence T, 202 E. 23d St, Cheyenne, 

 Wyo. Irrigation engineering. Near Denver, 

 Colo, Oct. 23, 72. B.S, Michigan, 95, C.E, 99. 

 Asst, state engineer's office, Wyo, 88-91, sum- 

 mers, 91-95; gaging streams, Wyo, for U. S. 

 Geol. Surv, 95-97; asst. state engineer, Wyo, 

 96-98; asst. chief of irrig. investigations, U. S. 

 Dept. Agr, 98-03; state engineer, Wyo, 03- 

 Consulting irrig. engineer, 97-99. Civil Eng; 

 Ass. State Engineers; Wyo. Soc. Eng. and Surv. 

 Irrigation law and engineering; flow of water 

 in canals and ditches ; design of irrigation struc- 

 tures. Coefficient of friction and value of coeffi- 

 cient of roughness ( Kutter's formula ) . 



Johnston, Prof. J(ohn) B(lack), Morgantown, W. 

 Va. * Zoology, Comparative neurology. Belle 

 Center, O, Oct. 3, 68. Ph.B, Michigan, 93, 

 Ph.D, 99; Smithsonian Table, Naples Zool. Sta, 

 04-05. Asst. and instr. zool, Michigan, 93- 

 99; asst. prof, West Virginia, 99-00, prof, 00- 

 F.A.A; Soc. Nat; Soc. Zool; Mich. Acad. Ner- 

 vous system of lower vertebrates; development 

 of heart and blood-vessels in Amphibia; circu- 

 lation in earthworms. Nervous system of Am- 

 phioxus, Selachians and Amphibia. 



Johnston, Prof. William A(tkinson), Massachu- 

 setts Institute of Technology, Boston, Mass. 

 Mechanical engineering. Boston, Aug. 31, 68. 

 B.S, Mass. Inst. Tech, 92. Asst. mech. eng, 

 Mass. Inst. Tech, 92-94, instr, 94-00, asst. prof, 

 00- Mech. Eng; Boston Soc. Arts. Applied 

 mechanics; steam engineering; strength of 

 materials. 



Johonnott, Prof. Edwin S(heldon), 2115 N. Ninth 

 St, Terre Haute, Ind. Physics. Richmond, Ills, 

 Nov. 9, 68. B.S, Rose, 93, M.S, 97; Hopkins, 

 95-96; fellow, Chicago, 97-98, Ph.D, 98. Ex- 

 aminer, U. S. Patent Office, 94; prof, physics 

 and math, Drury, 94-95; asst, Chicago, 98-99; 

 assoc. prof, physics, Rose, 99- F.A.A; Physical 



