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AMERICAN MEN OF SCIENCE 



Foundations of the calculus. Calculus of qua- 

 ternions; philosophy of mathematics. 



Mitchell, Prof. I(rving) N(elson), 2921 Cedar St, 

 Milwaukee, Wis. Biology. Bennington, Mich, 

 Dec. 9, 50. Ph.B, Michigan, 75. Principal, 

 High Sch, Niles, Mich, 75-77; principal and 

 supt. schools, Hastings, Mich, 78-80; teacher, 

 Grand Rapids, 81-83, supt. schools, 83-86; prin- 

 cipal and supt, Fond du Lac, Wis, S7-92; prof, 

 biol, State Nor. Sch, Mihvaukee, 93- Bot. Cent. 

 States; Wis. Acad; Wis. Nat. Hist. Soc. Life 

 history of Verbena stricta. 



Mitchell, Dr. John K(earsley), 1730 Spruce St, 

 Philadelphia, Pa. Neurology. Philadelphia, 

 July 13, 59. A.B, Harvard, 81; M.D, Penn- 

 sylvania, 83. Asst. demonstrator physical 

 diagnosis, Pennsylvania, 87-98, lecturer gen. 

 symptomat, 98-00; massage, Phila. Infirmary 

 for Nervous Diseases, 89- Physician, St. 

 Mary's and St. Agnes Hospitals; neurolo- 

 gist, Presbyterian Hosp; physician, Phila. 

 Orthop. Hosp. and Infirmary. Am. Physicians; 

 Am. Med. Ass; Neur. Ass; Phila. Neur. Soc. 

 (pres, 02); Phila. Path. Soc; fel. Phila. Col. 

 Physicians; Phila. Co. Med. Soc. Neurology; 

 physical diagnosis. Chemistry of possible toxic 

 causes of family periodic palsy; anemia and 

 the influence of massage on blood-making func- 

 tions. 



Mitchell, Dr. S(amuel) A (If red), Columbia Uni- 

 versity, New York, N. Y. Astronomy. King- 

 ston, Can, April 29, 74. A.M, Queen's (Can.), 

 94; Ph.D, Hopkins, 98. Research asst, Yerkes 

 Observatory, 98-99; tutor astron, Columbia, 99- 

 Asst. astronomer, U. S. Naval Observatory 

 Eclipse Exped, Ga, 00; Sumatra, 01; Spain, 05; 

 asst, Astrophys. Observatory, Smithsonian Inst, 

 04. M.A.A; Astron. and Astrophys. Soc; fel. 

 N. Y. Acad; fel. Royal Astron. Soc. Applica- 

 tion of concave grating to celestial photography; 

 flash spectra. Eclipse phenomena; ultraviolet 

 spectrum in vacuo. 



Mitchell, Dr. S(ilas) Weir, 1524 Walnut St, 

 Philadelphia, Pa. *Medicine, Physiology, Tox- 

 icology. Philadelphia, Feb. 15, 29. Pennsyl- 

 vania, 47 ; M.D, Jefferson Med. Col, 50. 

 Physician, Presbyterian Hosp; Infirmary for 

 Nervous Diseases; etc. Mem. Exec. Commit- 

 tee, Carnegie Inst; trustee, Pennsylvania. 

 LL.D, Harvard, Edinburgh and Princeton; hon. 

 M.D, Bologna. Nat. Acad; Am. Physicians; 

 Path. Soc; Physiol. Soc; Philos. Soc; Am. Acad; 

 Phila. Col. Physicians; British Med. Ass; Royal 

 Med. and Chirurg. Soc; London Clin. Soc; Ber- 

 lin Internal Med. Gesell; cor. mem. Acad, de 

 Med; Rome Reale Accad. d. Sci. Md; Bologna 

 Reale Accad; Christiana Sci. Soc. Medicine; 

 diseases of nervous system; serpent poisons. 

 Poisons of serpents; reflexes of lower limbs. 



Mitchell, Walter Reynolds, 433 57th St, Hyde 

 Park, Chicago, His. Biology. Knox Co,* O, 

 61. B.S, Illinois, 87; fellow, Chicago, 98- 

 99. Instr. science. High Sch, Urbana, Ills, 87- 

 88; Bement, 89-90; head, Biol. Dept, Hyde 

 Park High Sch, Chicago, 90- Director science, 



Chicago Atheneum, 91-02; prof. biol. science, 

 Michigan Summer Univ, 96-02. Bot. Cent. 

 States; Chicago Biol. Club. Influence of en- 

 vironment on plants; rudimentary muscles in 

 the glass snake. Ecological problems; so- 

 ciology. 



Mixer, Fred(erick) K(nowlton), 313 Delaware 

 Ave, Buffalo, N. Y. Geology, Paleontology, 

 Mineralogy. Buffalo, June 24, 60. Yale, 

 80; Hopkins, 87-88. Instr. geol. and miner, 

 Hobart, 85-86; curator, Buffalo Soc. Nat. Sci- 

 ence, 92-99. M.A.A; Soc. Nat; Colo. Sci. Soc; 

 Buffalo Soc. Nat. Sci. Inorganic geology; min- 

 eralogy. Microscopical examinations of erup- 

 tive rocks of Colorado and New Mexico. 



Mixter, Prof. W(illiam) G(ilbert), 250 Edwards 

 St, New Haven, Conn. *Chemistry. Dixon, 

 Ills, Sept. 23, 46. Ph.B, Yale, 67, A.M, 87; 

 Bunsen's Lab, 72-73; Hofmann's Lab, 73-74. 

 Asst. chcm, Sheffield Sci. Sch, Yale, 67-72, instr, 

 74-75, prof, 15- Chem. Soc ; Chem. Gesell. In- 

 organic chemistry. Some problems in thermal 

 chemistry. 



Moenkhaus, Prof. W(illiam) J, Bloomington, Ind. 

 Experimental biology. Huntingburgh, Ind, Jan. 

 6, 71. A.B, Indiana, 94, A.M, 95; Harvard, 96- 

 98; Chicago, 99-01, Ph.D, 03. Instr. zool, Indi- 

 ana, 95-96; asst. director, State Mus, Sao 

 Paulo, Brazil, 98-99; asst. prof, zool, Indiana, 

 01-04, assoc. prof, physiol, O-'f- Instr. zool, 

 Williams, 99; embryol, Rush Med. Col, 01. 

 F.A.A; Soc. Nat; fel. Ind. Acad. Variations of 

 North American fishes; the development of the 

 hybrids between Fundus treleroclitus and Me- 

 nidia notata with especial reference to the 

 behavior of the maternal and paternal chroma- 

 tin. Hybridization among fishes. 



Mohler, Prof. John Frederick, 127 S. College St, 

 Carlisle, Pa. * Physics. Boiling Springs, Pa, 

 Oct. 30, 64. A.B, Dickinson, 87, A.M, 90; fel- 

 low, Hopkins, 96, Ph.D, 97. Instr. math, and 

 science, Wilmington Conf. Acad, Dover, Del, 87- 

 90; math, Wesleyan Acad, Wilbraham, Mass, 

 90-94 ; prof, physics, Dickinson, 96- Asst, 

 Observatory, Hopkins, 95-96. M.A.A; Physical 

 Soc. Effect of pressure on wave-length of light; 

 pressure in the electric spark; capillary action 

 below zero. The Doppler principle in spark dis- 

 charges. 



Mohler, Dr. John R(obbins), 2317 First St, N. W, 

 Washington, D. C. Pathology, Bacteriology. 

 Philadelphia, Pa, May 9, 75. A.B, Temple, 

 93 ; V.M.D, Pennsylvania, 96 ; V.M.D, Milwaukee 

 Med. Col, 99. Asst. inspector, Bur. Animal 

 Indust, V. S. Dept. Agr, 97-99, vet. inspector, 

 99-01, zoologist, 01-02, chief, Path. Div, 02- 

 Vet. Med. Ass; Pub. Health Ass; D. C. Vet. 

 Med. Ass. Tuberculosis, anthrax, rabies and 

 other diseases of animals communicable to 

 man. Comparative pathology of the pancreas; 

 comparative study of tubercle bacilli. 



Moler, Prof. G(eorge) S(ylvanus), 408 L T niversity 

 Ave, Ithaca, N. Y. *Physics. Columbus, O, 

 Oct. 4, 51. B.M.E, Cornell, 75; A.B, Hedding, 



