2iS 



AMERICAN MEN OF SCIENCE 



scholar,Bryn Mawr, 95-96, fellow, 96-97; Room 

 &t Woods Hole, 96, 97; Mary E. Garrett Euro- 

 pean fellow, 98-99; Am. Woman's Table, Na- 

 ples, 98; Ph.D, Bryn Mawr, 00; Am. Woman's 

 Table, Naples, 01. Student asst. biol, Bryn 

 Mawr, 97-98; instr, Woman's Col. of Baltimore, 

 J'.i 02, assoc. prof, 02- Soc. Nat; Soc. Zool. 

 Regeneration of hydroids; embryology. Life 

 history of Haematococcur. 



Peet, Rev. Stephen D(enison), 438 57th St, Chi- 

 cago, Ills. Archeology, Ethnology. Euclid, O, 

 Dec. 2, 30. A.B, Beloit, 51; Andover Theol. 

 Sem, 54. Pastor, Congregational church ; ed, 

 'Am. Antiquarian and Oriental Journal,' 79- 

 Hon. Ph.D, Beloit, 97. Antiq. Soc; Oriental 

 Soc; Soc. Bib. Archeol; N. Y. Numis. Soc; 

 Anthrop. Inst, of Gt. Britain and Ireland; Vic- 

 toria Inst. Comparative religions; aboriginal 

 customs; prehistoric art and architecture. 

 Mythology in America; migration of Indian 

 tribes; alphabets and codices. 



Pegram, Dr. Geo(rge) B(raxton), Columbia Uni- 

 versity, New York, N. Y. *Physics. Trinity, 

 N. C, Oct. 24, 76. A.B, Trinity (N. C), 95; 

 Columbia, 99-00, Ph.D, 03. Teacher, high 

 schools, N. C, 95-99; asst. physics, Columbia, 

 00-02, tutor, 02-05, instr, 05- Magnetic ob- 

 server, U. S. Coast and Geod. Surv, 02-03. 

 F.A.A; Physical Soc. Radio-activity of tho- 

 rium. Secondary radio-activity in the electro- 

 lysis of thorium. 



Peirce, Prof. B(enjamin) O(sgood), Jefferson 

 Physical Laboratory, Cambridge, Mass. *Mathe- 

 matical physics. Beverly, Mass, Feb. 11, 54. 

 A.B, Harvard, 76; Ph.D, Leipzig, 79; Helm- 

 holtz's Lab, Berlin, 80. Instr. math, Boston 

 Latin Sch, 80-81 ; Harvard, 81-84, asst. prof, 

 math, and physics, 84-88, Hollis prof. math, and 

 nat. philos, 88- F.A.A; Physical Soc; Math. 

 Soc; Astron. and Astrophys. Soc; Am. Acad; 

 Wash. Acad. Gas batteries ; spectra of the 

 haloid compounds of mercury; the propagation 

 of heat in solid bodies; the thermal conductivi- 

 ties of rocks; the temperature variations of the 

 thermal conductivities of marble and slate; 

 plane doublets and quadruplets; generalized 

 space differentiation; families of curves which 

 are the lines of certain plane vectors either 

 solenoidal or lamellar; classes of solenoidal and 

 lamellar vectors symmetrical with respect to an 

 axis; theorems concerning the steady flow of 

 electricity through massive conductors ; isother- 

 mal conies ; the sensitiveness of the eye to 

 slight differences in color ; the properties of bat- 

 teries formed of cells joined up in a multiple 

 arc; the electrical resistances of various poor 

 conductors; the perception of horizontal and 

 vertical lines; etc. 



Peirce, C(harles) S, 'Arisbe,' Milford, Pa. *Logic. 

 Cambridge, Mass, Sept. 10, 39. A.B, Harvard, 

 59, A.M, 62, B.S, 63. Asst, U. S. Coast and 

 Geod. Surv, 73-93. Lecturer, Harvard, 64-65, 

 69-71; Hopkins, 80-82; Lowell Inst, 66, 95, 03. 

 Delegate for U. S, Int. Gradmessung Conf, Stutt- 

 gart. Nat. Acad; Am. Acad. Logic, especially 



logic of relations, probabilities, theory of induc- 

 tive and abductive validity; epistemology ; me- 

 trology; history of science; multiple algebra; 

 doctrine of multitudes; gravity; wave-lengths; 

 phonetics of Elizabethan English; great men; 

 ethics; phaneroscopy; cosmology; experimental 

 psychology; physical geometry. Foundations of 

 mathematics; classification of science; code of 

 terminology; topical geometry. 



Peirce, Prof. G(eorge) J(ames), P. O. Box 65, 

 Stanford University, Cal. Plant physiology. 

 Manila, P. I, March 13, 68. B.S, Harvard, 90, 

 Parker fellow, 92-94 ; Ph.D, Leipzig, 94. Asst. 

 bot. Harvard and Radcliffe, 90-92; asst. prof, 

 Indiana, 95-97; Stanford, 97-00, assoc. prof, 

 plant physiol, 00- F.A.A; Soc. Plant Morph. 

 and Physiol; Bot. Gesell. Physiology, espe- 

 cially of parasitic plants. Various parasitic 

 flowering plants. 



Peirce, Prof. J(ames) M(ills), 4 Kirkland Place, 

 Cambridge, Mass. * Mathematics. Cambridge, 

 May 1, 34. A.B, Harvard, 53, A.M, 56. Tutor 

 math, Harvard, 54-58, asst. prof, 61-69, prof, 

 69- Math. Soc; Am. Acad. Quaternions; 

 triangular and tetrahedral coordinates. 



Pell, Prof. Alex(ander), Vermilion, S. Dak. 

 *Mathematics. Moscow, Russia, Sept. 25, 57. 

 Fellow, Ph.D, Hopkins, 97. Prof, math, South 

 Dakota, 97- Math. Soc; Kasan (Russia) 

 Math. Soc. Differential geometry. 



Pellew, Prof. Charles E(rnest), 10 W. 43d St, 

 New York, N. Y. *Chemistry. London, Eng- 

 land, March 11, 63. E.M, Columbia, 84. Instr. 

 and later demonstrator physics and chem, Col. 

 Physicians and Surg, Columbia, 87-97, adj. prof, 

 chem, 97- Chem. Soc; Soc. Chem. Indust; fel. 

 N. Y. Acad; Chem. Verein. 



Pender, Dr. Harold, Svracuse University, Syracuse, 

 N. Y. Physics. "Tarboro, N. C, Jan. 13, 79. 

 A.B, Hopkins, 98, Ph.D, 01. Teacher, Mc- 

 Donogh Sch, 01-02; instr. physics, Syracuse, 

 02- Physical Soc. Electrical convection. 

 Magnetic action of charged carbonic acid 

 stream. 



Penfield, Prof. Samuel L(ewis), Sheffield Scientific 

 School, New Haven, Conn. * Mineralogy. 

 Catskill, N. Y, Jan. 16, 56. Ph.B, Yale, 77; 

 Strasburg, 81; Heidelberg, 84; A.M, Yale, 96. 

 Asst. anal, chem, Yale, 78-79, instr. and asst. 

 prof, miner, 80-93, prof, 93- LL.D, Wisconsin, 

 04. Nat. Acad; F.A.A; Geol. Soc; assoc. fel. 

 Am. Acad; Gt. Britain Miner. Soc; London 

 Geol. Soc; Gottingen Gesell; Stockholm Geol. 

 Soe; Christiania Sci. Soc. Mineral chemistry 

 and crystallography. 



Penhallow, Prof. D(avid) P(earce), McGill Uni- 

 versity, Montreal, Can. Botany. Kittery 

 Point, Me, May 25, 54. B.S, Mass. State, 

 73; Boston, 88; B.S, M.S, McGill, 96, Sc.D, 

 04. Prof. bot. and chem, Imperial Col. 

 Agr, Japan, 76-80; botanist, Houghton Farm 

 Exp. Sta, 82-83 ; prof, bot, McGill, 83- Acting 

 pres, Imperial Col. Agr, Japan, 79-80; ed, ' Can. 

 Rec. Science,' 88-90, 04-; assoc. ed, 'Am. Nat- 



