AMERICAN MEN OF SCIENCE 



253 



science work in private lab, 72-87; Mus. Comp. 

 Zool, Cambridge, 82-83; Michigan, 87-89. 

 Chief inspector lumber, Ludington, Mich, 74- 

 88; in charge, Pacific Coast Lab. of Veg. Path, 

 U. S. Dept. Agr, S9-, established Wild Plant 

 Improvement Gardens, 02. F.A.A; Soc. Bact; 

 life mem. Breeders' Ass; Cal. Entom. Club; 

 life mem. Mich, and Ills. Hort. Societies; Int. 

 Ass. Bot. Entomology; bacterial plant dis- 

 eases; mycology; plant breeding. Bacterial 

 walnut disease; hybridizations among nut trees ; 

 new and destructive vine diseases; wild plant 

 improvement. 



Pierce, P(erry) B(enjamin), 1421 29th St, Wash- 

 ington, D. C. Technology. Canton, N. Y, Nov. 

 9, 40. A.B, Hobart, 65, A.M, 68 ; LL.B, Colum- 

 bian, 76. Head master, Edward's Place Sch, 

 Stockbridge, Mass, 73-75; asst. examiner, U. 8. 

 Patent Office, 76-83, principal examiner, 83- 

 Mem. Jury of Awards, Pan.-Am. Expos, 01. 

 F.A.A; Am. Hist. Ass; Folk-lore Soc; Wash. 

 Anthrop. Soc. (treas, 05). Meteorology; pho- 

 tography; telegraphy. Wireless telegraphy. 



Pierpont, Prof. James, Yale University, New 

 Haven, Conn. * Mathematics. B.S, Worcester, 87; 

 Ph.D, Vienna, 94. Prof, math, Yale. Math. Soc. 



Piersol, Prof. Geo(rge) A(rthur), 4724 Chester Ave, 

 Philadelphia, Pa. * Anatomy, Histology, Em- 

 bryology. Philadelphia, May 17, 56. C.E, 

 Polytech. Col. of Pa, 74; M.D, Pennsylvania, 

 77; Berlin, 86-87; Wiirzburg, 87-88; Berlin, 

 91. Asst. demonstrator histol, Med. Dept, Penn- 

 sylvania, 77-82, demonstrator, 82-00, prof, his- 

 tol. and embryol, 00-01, anat, 01- Mem. Board 

 of Editors, 'Am. Jour. Anat.' F.A.A; Ass. 

 Anat; Soc. Zool; Philos. Soc; fel. Phila. Col. 

 Physicians ; Phila. Acad. Histology and embry- 

 ology relating to sense organs ; development of 

 the pharynx, monstrosities, pigment, etc. De- 

 velopment of the urogenital tract; origin of 

 lymphoid tissue. 



Pieters, A(drian) J(ohn), Takoma Park, D. C. 

 "Botany. Alto, Wis, Nov. 18, 66. B.S, Mich- 

 igan, 94. Asst. botanist, U. S. Dept. Agr, 95-00, 

 botanist in charge seed and plant introduction 

 and distribution, 00- Soc. Plant Morph. and 

 Physiol; Soc. Hort. Sci; Wash. Bot. Soc; Wash. 

 Acad. Aquatic plants; germination of seeds. 



Pillsbury, Prof. J(ohn) H(enry), Waban School, 

 Waban, Mass. Mathematics, Science. Liming- 

 ton, Me, Dec. 20, 46. A.B, Wesleyan, 74, A.M, 

 77. Teacher, Wilbraham Acad, 74-75; asst. 

 nat. hist, Wesleyan, 75-77; principal, Liming- 

 ton Acad, 77 ; instr, High Sch, Springfield, Mass, 

 77-84; prof, biol, Smith, 84-92; univ. extension 

 lecturer, 92-93; instr. comp. anat, Med. Sch, 

 Boston, 94-95; principal, Waban Sch, 99- Ed. 

 biol. notes, 'Jour. Micros,' 90-92. F.A.A; Soc. 

 Nat. Standards of color by measurement. 

 Areas of color sense in the retina. 



Pillsbury, Prof. W(alter) B(owers), 1218 S. Uni- 

 versity Ave, Ann Arbor, Mich. "Psychology. 

 Burlington, la, July 21, 72. Penn, 88-90; 

 A.B, Nebraska, 92; Ph.D, Cornell, 96. Instr. 



math, Grand Island, 92-93; asst. psychol, Cor- 

 nell, 95-97; instr, Michigan, 97-00, asst. prof. 

 philos. and director, Psychol. Lab, 00-05, junior 

 prof, 05- Collaborator, 'Am. Jour. Psychol,' 

 97-; 'Index Philos,' 04- Psychol. Ass. Read- 

 ing; circulation in relation to consciousness; 

 fatigue of sensory processes; attention. Psy- 

 chology of reasoning. 



Pilsbry, Dr. H(enry) A(ugustus), Seventh St, 

 Oak Lane, Philadelphia, Pa. "Malacology, 

 Paleontology. Iowa City, la, Dec. 7, 62. B.S, 

 Iowa. Special curator, Dept. Mollusca, Acad. 

 Nat. Sciences, Phila, 88- Ed, 'The Nautilus,' 

 89-03. Hon. Sc.D, Iowa. Philos. Soc; Phila. 

 Acad; London Malacol. Soc. Anatomy and 

 phylogeny of land mollusks, of Polylacophora, 

 etc; American and Japanese fauna. Evolution- 

 ary processes in Mollusca. 



Pinchot, Gifford, 1615 Rhode Island Ave, Wash- 

 ington, D. C. "Forestry. Simsbury, Conn, 

 Aug. 11, 65. A.B, Yale, 89; Nancy, 90. Con- 

 sulting forester, 92-98; in charge forestry, 

 Biltmore estate, 92-94; mem. Nat. Forest Com- 

 mission, Nat. Acad, 95-96; confidential forest 

 agent to Sec'y of the Interior, 97 ; forester, U. 8. 

 Dept. Agr, 98- Mem. Committee on Organiza- 

 tion of Govt. Sci. Work and of Commission on 

 Pub. Lands, 03-; on Govt. Dept. Methods, 05- 

 Hon. A.M, Yale, 01; Princeton, 04. F.A.A; 

 Forestry Ass; Soc. Foresters; Soc. Prom. Agr. 

 Sci; Min. Eng; Civil Eng; Nat. Geog. Soc; Am. 

 Geog. Soc; Econ. Ass; Wash. Acad. Forestry 

 in general; forest policy. Directing research 

 covering nearly the whole field of forestry in the 

 United States. 



Pinney, Mrs. Augusta Robinson, 350 Central St, 

 Springfield, Mass. Entomology, Botany. 

 Orange, N. J. Private sch. Principal, Inter- 

 mediate Dept, and teacher of physiol, zool. and 

 art, Miss Robinson's Sch. for Young Ladies, 

 68-88. M.A.A; Springfield Zool. Club. In- 

 jurious insects and their enemies; bugs that are 

 useful in keeping down injurious insects. 

 Earthworms. 



Piper, Prof. Charles V(ancouver), U. S. Depart- 

 ment of Agriculture, Washington, D.C. Botany, 

 Entomology. Victoria, B. C, June 16, 67. 

 B.S, Washington (Seattle), 85, M.S, 92; M.S, 

 Harvard, 00. Prof, entom, Wash. Agr. Col, 

 92-93, bot. and zool, 93-03; syst. agrostologist, 

 U. S. Dept. Agr, 03-04, agrostologist, 05- F.A.A ; 

 Nat. Geog. Soc; Wash. Bot, Entom. and Biol. 

 Societies. Systematic botany; Phanerogamia. 

 Flora of Washington; forage plants. 



Pirsson, Prof. L(ouis) V(alentine), 41 Trumbull 

 St, New Haven, Conn. "Geology. New York, 

 N. Y, Nov. 3, 60. Ph.B, Yale, 82; Heidelberg 

 and Paris, 91-92; A.M, Yale, 02. Asst, Chem. 

 Lab, Sheffield Sci. Sch, Tale, 82-85, instr, 85-88, 

 miner, and lithol, 92-93, geol, 93-94, asst. prof, 

 94-97, prof, 97-- Geologist, U. S. Geol. Surv; 

 asst. ed, ' Am. Jour. Science.' Mem. Int. Com- 

 mittee Petrog, Int. Cong. Geol, Paris, 00. Geol. 

 Soc; Wash. Geol. Soc; Wash. Acad; Conn. 

 Acad; Stockholm Geol. Soc. Geology, especially 



