AMERICAN MEN OF SCIENCE 



185 



Western Univ. of Pa, 71-74; chem. and metal, 

 Michigan, 74-89 ; elec. eng, Case, 92-05, electro- 

 metal, 05- Min. Eng; hon. mem. West. Pa. 

 Eng. Soc; Cleveland Civil and Elec. Eng. Clubs; 

 cor. mem. British Ass. Pure chemistry; metal- 

 lurgy; electricity. 



Langley, Dr. S(amuel) P(ierpont), Smithsonian 

 Institution, Washington, D. C. * Astrophysics. 

 Eoxbury, Mass, Aug. 22, 34. Boston High Sch. 

 Asst, Harvard Col. Observatory, 65; asst. prof, 

 math, U. S. Naval Acad, 66 ; director, Allegheny 

 Observatory, 67-87 ; sec'y, Smithsonian Inst, 87- 

 Trustee, Carnegie Inst. Rumford medal, Royal 

 Soc. and Am. Acad; Henry Draper medal, Nat. 

 Acad; Janssen medal, Inst, de France; LL.D, 

 Harvard, Princeton, Michigan, Wisconsin and 

 Yale; hon. Ph.D, Stevens; D.C.L, Oxford; Sc.D, 

 Cambridge. Nat. Acad; FA. A. (sec'y, A, 75, 

 v. pres, 79, 85, pres, 87) ; Astron. and Astrophys. 

 Soc; Am. Acad; Philos. Soc; Wash. Acad; for. 

 mem. Royal Astron. Soc; cor. mem. Inst, de 

 France; cor. mem. Reale Inst. Veneto. Solar 

 physics; aerodromics. 



Langmuir, Dr. A(rthur) C(omings), 9 Van Brunt 

 St, Brooklyn, N. Y. Chemistry. Chicago, Ills, 

 Feb. 7, 72. Ph.B, Columbia, 93; Ph.D, Heidel- 

 berg, 95. Asst. to Prof. C. F. Chandler, N. Y. 

 City, 95-96; head chemist, Ricketts and Banks, 

 N. Y. City, 96-00; chemist and supt, Marx and 

 Rawolle, Brooklyn, 00- Consulting prof, shel- 

 lac, varnishes and glycerin refining, Brooklyn 

 Polytech. Chem. Soc; Soc. Chem. Indust; 

 Chem. Gesell. Analytical chemistry, shellac 

 and glycerin. 



Langsdorf, Prof. A(lexander) S(uss), 3133 

 Laclede Ave, St. Louis, Mo. Electrical engi- 

 neering. St. Louis, Aug. 31, 77. B.S, Wash- 

 ington (St. Louis), 98; M.M.E, Cornell, 01. 

 Instr. physics, Washington {St. Louis), 98-02, 

 asst. prof. elec. eng, 01-04, prof, 04~ F.A.A; 

 assoc. Elec. Eng; Eng. Educ; St. Louis Acad; 

 St. Louis Eng. Club. Phenomena of alternat- 

 ing currents. Regulation of alternators and 

 transformers on unbalanced polyphase circuits; 

 oscillations or hunting of rotary converters. 



Langton, Dr. Daniel W(ebster), 175 Fifth Ave, 

 New York, N. Y. Geology. Kemper Co, Miss, 

 May 5, 64. A.B, Alabama, 82, Ph.D, 90. Asst, 

 Ala. Geol. Sury, 82-90; asst. geologist, L. and 

 N. R. R, 88-89 ; consulting geologist, Chesapeake 

 and Ohio R. R. Co, 89-94; landscape architect, 

 96- Asst. prof, chem, Alabama, 89. Geol. 

 Soc. Tertiary Eocene of the Gulf coast. 



Lantz, D(avid) E(rnest), U. S. Department of 

 Agriculture, Washington, D. C. Mathematics, 

 Zoology, Ornithology. Juniata Co, Pa, March 

 1, 55. State Nor. Sch, Bloomsburg, Pa, 75, 

 85. Supt. schools, Manhattan, Kas, 78-83; 

 prof, math, Kas. State Agr. Col, 83-97; prin- 

 cipal, Co. High Sch, Chapman, Kas, 98-00; 

 field agent, Kas. State Agr. Exp. Sta, 01-04; 

 asst. biologist, Div. Biol. Surv, U. S. Dept. Agr, 

 04- Assoc. Ornith. Union; Kas. Acad, (sec'y* 

 95-01 ) . Ornithology and mammalogy of Kan- 



sas; local flora and entomology. Economic 

 mammalogy of the United States. 

 Lanza, Prof. Gaetano, 22 W. Cedar St, Boston, 

 Mass. *Mechanics, Mechanical and civil engi- 

 neering. Boston, Sept. 26, 48. C.E, Virginia, 

 69, B.S, C. E. and M.E, 70. Asst. instr. math, 

 Virginia, 69-71; instr, Mass. Inst. Tech, 71-72, 

 asst. prof, 72-75, prof, theoret. and applied 

 mech, 7.5-, in charge, Dept. Mech. Eng, 83- 

 F.A.A; Mech. Eng; Eng. Educ; Math. Soc; cor. 

 mem. Nat. Geog. Soc; Naval Archit. and Ma- 

 rine Eng; Soc. Testing Materials; fel. Am. 

 Acad; Boston Soc. Civil Eng; New Eng. R. R. 

 Club; cor. mem. Brooklyn Inst; Appalachian 

 Mt. Club; Int. Ass. Testing Materials; British 

 Ass; London Soc. Arts; Circolo Italiano. Ap- 

 plied mechanics; strength of materials and 

 other engineering subjects. 



Larkin, Prof. Edgar L(ucene), Echo Mountain, 

 Cal. Astronomy, Astrophysics. Freedom, Ills, 

 April 5, 47. High Sch. Director, Observatory, 

 New Windsor, Ills, 79-88; prof, astron. and di- 

 rector, Observatory, Knox, 88-95; director, 

 Loxoe Observatory, Echo Mt, 00- Astron. ed, 

 'Kansas City Review,' 81-87; science ed, 'San 

 Francisco Examiner.' F.A.A; Astron. and 

 Astrophys. Soc; Pacific Astron. Soc; S. Cal. 

 Acad; Ills. Soc. Nat. Hist. Astronomy; spec- 

 troscopy; astrophysics. 



Lartigau, Dr. A(ugust) J(erome), 731 Sutter St, 

 San Francisco, Cal. * Bacteriology, Pathology. 

 San Francisco, Feb. 19, 75. M.D, California, 96. 

 Asst, Bender Hygienic Lab, 96-99 ; instr. path, 

 Columbia, 99-03; asst. gynec, Med. Dept, Cali- 

 fornia, and attending surgeon, San Francisco 

 Maternity, 03- Ass. Path, and Bact. Bac- 

 teriology of B. pyocyaneus; bacterial etiology 

 of gall-stones; tuberculosis of adenoids; hyper- 

 plastic tuberculosis of caecum. 



Latimer, Dr. Caroline, 25 W. Chase St, Baltimore, 

 Md. Physiology. Baltimore, March, 28, 60. 

 M.D, Woman's Med. Col. of Baltimore, 90; A.B, 

 A.M, Bryn Mawr, 96. Instr. biol, Woman's Col. 

 of Baltimore, 97-99. Soc. Nat; Md. Med. and 

 Chirurg. Faculty. Presence of amylolytic fer- 

 ment and its zymogen in the salivary gland; 

 modification of rigor mortis resulting from 

 previous fatigue of the nerve in cold-blooded 

 animals. Toxic effect of the injection of the 

 blood serum of one animal into the body of 

 another. 



Lattimore, Prof. S(amuel) A(llan), 595 Univer- 

 sity Ave, Rochester, N. Y. *Chemistry. Lib- 

 erty, Ind, May 31, 28. A.B, De Pauw, 50, A.M, 

 53. Classical tutor, De Pauw, 50-52, prof. 

 Greek, 52-60 ; chem, Genesee, 60-67 ; Roches- 

 ter, 67- Chemist, Board of Water Commis- 

 sioners, Rochester, N. Y, 72; N. Y. State 

 Board of Health, 81-85; N. Y. State Dept. Agr, 

 86-: acting pres, Rochester, 96-98. Hon. Ph.D, 

 De Pauw, 73; LL.D, Hamilton, 73. F.A.A. (v. 

 pres, 80) ; Chem. Soc. 



Laufer, Dr. Berthold, American Museum of Nat- 

 ural History, New York, N. Y. Ethnology. 

 Cologne, Germany, Oct. 11, 74. Berlin, 93-95; 



