i:;.x 



AMERICAN MEN OF SCIENCE 



ical agricultural Chemistry; the oceanic depos- 

 its and coral rocks of the West Indies ; the geol- 

 ogy of the Guianas. Agricultural studies with 

 tropical products; the structure and petrog- 

 raphy of the Guianas. 

 Harrison, Dr. R(oss) G(ranville), Charles St, 

 Baltimore, Md. * Anatomy. Germantown, 

 Pa, Jan. 13, 70. A.B, Hopkins, 89; Ph.D, 

 94; M.D, Bonn, 99. Lecturer morph, 

 Bryn Mawr, 94-95; instr. anat, Hopkins, 96- 

 97, assoc, 97-99, assoc. prof, 99- Managing 

 ed, 'Jour. Exp. Zool.' Soc. Nat. (sec'y, 

 01-03) ; Ass. Anat; Soc. Zool. (mem. Exec 

 Committee, 02) ; Soc. Exp. Biol, and Med; Anat. 

 Gesell. Development of fins of fishes; the histo- 

 genesis of the peripheral nervous system; am- 

 phibian larvae; development of the lateral line 

 in Amphibia; relation of the nervous system to 

 muscle differentiation in the embryo. Develop- 

 ment and regeneration of peripheral nerves. 

 Harshberger, Dr. John W(illiam), 737 Corinthian 

 Ave, Philadelphia, Pa. * Botany. Philadel- 

 phia, Jan. 1, 69. B.S, Pennsylvania, 92, Ph.D, 

 93. Instr. lot. and zool, Pennsylvania, 92- 

 Teacher, Rittenhouse Acad, 92-95; ed. bot. 

 words, ' Lippincott's New English Diet,' 95-; 

 lecturer, Am. Soc. of Univ. Extension, 96. 

 M.A.A; Soc. Plant Morph. and Physiol; Nat. 

 Geog. Soc; Pa. Bot. Soc; Pa. Forestry Ass; 

 Phila. Acad. ( recorder, Bot. Sect. ) ; Phila. Geog. 

 Soc; Phila. Bot. Club. Maize; ethnobotany; 

 ecology of New Jersey strand flora, Valley of 

 Mexico, southeastern Pennsylvania, Mt. Katah- 

 din (Me.) and the mountains of North Caro- 

 lina. Ecological survey of Crum Creek Valley; 

 phytogeography of North America. 

 Hart, Charles A(rthur), 923 W. Green St, Urbana, 

 Ills. Entomology. Quiucy, Ills, Oct. 12, 59. 

 Ills. State Nor. Univ, 81-82. Asst, State Lab. 

 Nat. Hist, Illinois, S4-89, entomologist, 89-; 

 asst. to state entomologist, 89-; entomologist, 

 Ills. Biol. Sta, 94- M.A.A; Soc. Nat; Ass. Econ. 

 Entom; Soc. Zool; Wash. Entom. Soc. Aquatic 

 insects; immature stages of insects. Epheme- 

 ridae of Illinois; dragon-fly nymphs; larvae of 

 Coccinellidae. 

 Hart, Prof. Edward, Easton, Pa. *Chemistry. 

 Doylestown, Pa, Sept. 18, 54. B.S, Lafayette, 

 73; fellow, Hopkins, 76-77, Ph.D, 73. Asst. 

 chem, Lafayette, 74-75, tutor, 75-76, adj. prof, 

 77-82, prof, 82- Ed, 'Jour. Anal. Chem,' 87- 

 93; consulting chemist. John Scott medal and 

 premium. F.A.A. (sec'y, C, 89, v. pres, 93) ; 

 Chem. Soc. (ed, 'Jour,' 92-01); Electrochem. 

 Soc; Min. Eng; Franklin Inst; Ceramic Soc; 

 Chem. Gesell. Volumetric analysis; new proc- 

 esses for the manufacture of nitric and hydro- 

 chloric acids; the nitrosulphobenzoic acids. 

 Alloys of glucinium; electric combustion; man- 

 ufacturing chemistry. 

 Hart, Prof. J(ames) N(orris), Orono, Me. 

 Mathematics, Astronomy. Willimantic, Me, 

 May 22, 61. B.C.E, Maine, 85, C.E, 90; MS, 

 Chicago, 97. Instr. math, and drawing, Maine, 

 87-90, prof. math, and astron, 91-, dean, 03- 

 M.A.A; Math. Soc; Astron. and Astrophys. Soc. 



Hartman, Dr. L(eon) W(ilson), 205 Huestis St, 

 Ithaca, N. Y. Physics. Downsville, N. Y, 

 June 18, 76. B.S, Cornell, 98, A.M, 99; Frazer 

 fellow, Pennsylvania, 02-03, Ph.D, 03, Tyndale 

 fellow (Gottingen), 03-04. Asst. physics, Cor- 

 nell, 00-01; prof, Kas. State Agr. Col, 01-02; 

 instr, Cornell, OJy- Spectrophotometry studies 

 on Nernst lamp glowers and on mixtures of 

 acetylene and hydrogen; acetylene; the radia- 

 tion from black bodies in air; conduction and 

 convection losses of black filaments in air. 

 Temperature and energy measurements on 

 Nernst lamp glowers; radiation. 



Hartwell, Dr. Burt L(aws), Kingston, R. I. 

 Chemistry, Plant physiology. Littleton, Mass, 

 Dec. 18, 65. B.S, Boston, 89; M.S, Mass. Agr. 

 Col, 00; Ph.D, Pennsylvania, 03. Asst. chem- 

 ist, Mass. Agr. Exp. Sta, 89-91; first asst. 

 chemist, R. I. Agr. Exp. Sta, 91-03, assoc. 

 chemist, 03- Chem. Soc. Composition of ashes 

 of plants; plant fertilization; separation of 

 rare elements by organic bases. Assimilation 

 of phosphorus by plants; substitution of so- 

 dium for potassium in plant nutrition. 



Hartwell, Dr. John A(ugustus), 50 E. 53d St, New 

 York, N. Y. Medicine. Sussex, N. J, Sept. 

 27, 69. Ph.B, Yale, 89, M.D, 92; Columbia, 

 92-93. Asst. prof, physiol. and demonstrator 

 anat, Med. Col, Cornell, 98- Surgeon, Lincoln 

 Hosp, N. Y. City, 97-; adj. asst. surgeon, Bel- 

 levue Hosp. Fel. N. Y. Co. Med. Soc; fel. 

 N. Y. Acad. Med; N. Y. Surg. Soc. 

 Hartzell, Prof. J(oseph) Culver, The Alameda, Ave. 

 1755, San Jose, Cal. Geoloqy. New Orleans, 

 La, Sept. 10, 70. B.S, U. S. Grant Univ, 92, 

 M.S, 95; Harvard, summer, 96; Hopkins, 96-98; 

 Yale, 98-99, M.S, 99; Munich, summer, 03; 

 Pisa, 03-04; Ph.D, Munich, 04. Prof. biol. and 

 geol, Ills. Wesleyan, 99-04; geol, Pacific, 0J t - 

 M.A.A; Nat. Geog. Soc; Am. Geog. Soc; Ohio 

 Acad; Wash. Geol. Soc; Wash. Biol. Soc. Con- 

 ditions of fossilization. The mineral composi- 

 tion of fossil invertebrates, the conditions in 

 which they occur, the mineral composition of 

 their living representatives and the lithographic 

 composition of the formations and the laws gov- 

 erning the fossilization; das Oberdevon, Eu- 

 ropas und Nordamerikas. 

 Harvey, Dr. Basil C(oleman) H(yatt), University 

 of Chicago, Chicago, Ills. Anatomy. Watford, 

 Ont, Jan. 16, 75. A.B, Toronto, 94; licentiate, 

 N. S. Nor. Col, 95; M.B, Toronto, 9S. Asst. 

 anat, Toronto, 95-97; Chicago, 01-02, assoc, 

 02-04, imtr, 0k~ Ass. Anat; Ont. Col. Physi- 

 cians and Surg. Gastric mucosa. 

 Haskell, E(ugene) E(lwin), 61 Euclid Ave, De- 

 troit, Mich. Civil engineering. Holland, N. Y, 

 May 10, 55. B.C.E, Cornell, 79, C.E, 90. 

 With Mississippi River Surv, 80-85; U. S. Coast 

 and Geod. Surv, 85-93; principal asst. engineer, 

 U. S. Lake Surv, 93- F.A.A; Civil Eng; Nat, 

 Geog. Soc; Detroit Eng. Soc. Measurement of 

 the flow of water in open channels. 

 Haskell, Prof. M(ellen) W(oodman), P. 0. Box 3, 

 Berkeley, Cal. *Mathematics. Salem, Mass, 



