AMERICAN MEN OF SCIENCE 



257 



Census, 99- Sec'y to officials of U. S. Bureau 

 of Labor Statist. Litt.D, Tufts, 00. F.A.A; 

 Econ. Ass; Statist. Ass; Acad. Polit. and 

 Social Sci. Farm mortgages; organization of 

 labor; economics of agriculture. Economics of 

 agriculture. 



Prang, Louis, 45 Centre St, Boston, Mass. Color. 

 Breslau, Germany, March 12, 24. Ger- 

 man pub. and tech. schools. Lithographer, 

 colorprinter, author and publisher, Boston, 51- 

 Diplomas and gold medals from all Int. Exposi- 

 tions since 1873. M.A.A; Archeol. Soe. Color 

 in its practical application in the arts, in educa- 

 tion and in the establishment of a permanent 

 standard for practical use. 



Prather, Prof. John M(cClellan), Central High 

 School, St. Louis, Mo. Biology, Zoology. 

 Felicity, 0, Sept. 8, 64. A.B, Antioch, 91; 

 A.B, Harvard, 94, A.M, 95; Ph.D, Chicago, 01. 

 Teacher, Enon, O, 88-89; '-principal schools, 

 Bryant, S. Dak, 91-93; prof. biol. and physics, 

 Antioch, 97-99; instr. biol, Cincinnnati, 01-02; 

 High Sch, St. Louis, 02- Lab. asst. bot. and 

 zool, Harvard, 94-96; asst. embryol, Chicago, 

 01. M.A.A; Soc. Zool; Ohio Acad; Cincin- 

 nati Soc. Nat. Hist. Early stages in develop- 

 ment of hypophysis in Amra; the skeleton of 

 Salanx microdon with remarks on the life his- 

 tory, taxonomy, etc. The lateral line system in 

 Salanx microdon. 



Pratt, Frederick H(aven), Worcester, Mass. 

 Physiology. Worcester, July 19, 73. A.B, 

 Harvard, 96, A.M, 98. Asst. physiol, Harvard, 

 01. Nutrition of heart and anatomy of cardiac 

 vessels. 



Pratt, Prof. Henry S (herring), Haverford College, 

 Haverford, Pa. *Zoology. Toledo, O, Aug. 18, 

 59. A.B, Michigan, 82; admitted to Ohio Bar, 

 85; Leipzig, Freiburg and Geneva, 88-92; Ph.D, 

 Leipzig, 92; Harvard, 92-93; Innsbruck, 02-03. 

 Instr. biol, Haverford, 93-98, assoc. prof, 98-01, 

 prof, 01- Instr. comp. anat, Cold Spring 

 Harbor, 96- Soc. Nat; Soc. Zool. ( sec'y-treas, 

 East. Branch) ; Cambridge Entom. Soc. (pres, 

 97 ) . Embryology and metamorphoses of in- 

 sects; trematodes; invertebrate zoology. Struc- 

 ture and classification of trematodes; meta- 

 morphoses of Diptera. 



Pratt, J(ohn) F(rancis), U. S. Coast and Geodetic 

 Survey, Washington, D. C. Geodesy, Topog- 

 raphy, Hydrography. Pomfret, Vt, June 18, 

 48. B.S, Dartmouth, 71. Aid, U. S. Coast and 

 Geod. Surv, 71-79, sub-asst, 79-84, asst, 84- 

 Asst. astronomer, Transit of Mercury Exped, 

 78; Venus, 82; chief, Alaska Boundary Expedi- 

 tions, 92-94; Exploration and Survey of Delta 

 of Yukon River, 98 ; in command, Magnetic 

 Exped. to N. Pacific Ocean, Carnegie Inst, 05. 

 M.A.A; Wash. Acad; Thayer Soc. Eng. Prac- 

 tical geodesy. Commercial development of 

 Alaska and Hawaiian Islands. 



Pratt, Dr. Joseph H(ersey), 143 Newbury St, Bos- 

 ton, Mass. Pathology, Medicine. Middleboro, 

 Mass, Dec. 5, 72. Ph.B, Yale, 94; M.D, Hop- 

 18 



kins, 98; A.M, Harvard, 01. Asst. path, Boston 

 City Hosp, 98-00, asst. visiting pathologist, 01- 

 02 ; instr. path, Harvard, 00-02, asst. theory and 

 practise of physic, 02- Ass. Path, and Baet; 

 Soc. Exp. Biol, and Med; Boston Soc. Med. 

 Sci. Histology of pneumonia; the blood plate- 

 lets; filaria sanguinis hominis; benign tumors 

 of the thyroid gland. The pathology of the 

 blood platelets; composition of the fecal fats. 



Pratt, Dr. Joseph Hyde, Chapel Hill, N. C. 

 Geology, Mineralogy. Hartford, Conn, Feb. 3, 

 70. Ph.B, Yale, 93, Ph.D, 96. Instr. miner, 

 Yale, 95-97 ; state mineralogist, N. C. Geol. 

 Surv, 97-; lecturer, North Carolina, 98-04, prof, 

 econ. geol, 04- Field asst. geologist, U. S. Geol. 

 Surv, 99. F.A.A; Geol. Soc; Min. Eng; Chem. 

 Soc; Am. Geog. Soc; N. Y. Acad. The occur- 

 rence and origin of ore deposits. 



Preble, Edward A(lexander), Biological Survey, 

 U. S. Department of Agriculture, Washington, 

 D. C. Ornithology, Mammalogy. Somerville, 

 Mass, June 11, 71. High Sch. Field natural- 

 ist and asst. biologist, Biol. Surv, U. S. Dept. 

 Agr, 92- Mem. Ornith. Union; Nat. Geog. 

 Soc; Wash. Biol. Soc. General studies in or- 

 nithology and mammalogy; biology of the Hud- 

 son Bay region. Biology of the Athabasca and 

 Mackenzie regions, Canada. 



Prentiss, Dr. C(harles) W(illiam), University of 

 Washington, Seattle, Wash. *Zoology. Wash- 

 ington, D. C, Aug. 14, 74. A.B, Middlebury, 96, 

 A.M, 97; A.M, Harvard, 98, Ph.D, 00, Parker fel- 

 low (Freiburg), 01-02; Smithsonian Inst. Table, 

 Naples Zool. Sta, 02. Asst. zool, Harvard, 97- 

 00, instr. anat, 00-01; instr. in charge, Biol. 

 Dept, Western Reserve, 03-04; instr. biol, Man- 

 ual Training Sch, Washington (St. Louis), 04- 

 05; asst. prof. biol. and acting prof, zool, Wash- 

 ington (Seattle), 05- Collaborator, 'Jour. 

 Neur.' Soc. Nat; Soc. Zool; Ass. Anat. The 

 otocyst of decapod Crustacea; abnormalities in 

 worms; polydactylism; nervous structures in 

 the palate of the frog; neurofibrillar structures 

 in the ganglia of the leech and crayfish. Audi- 

 tory organs of Cephalopoda. 



Prentiss, Prof. R(obert) W(oodworth), 122 Bayard 

 St, New Brunswick, N. J. Mathematics, As- 

 tronomy. Boston, Mass, Jan. 30, 57. B.S, 

 Rutgers, 78, M.S, 81; fellow, Hopkins, 79- 

 81. Asst, 'Nautical Almanac,' 81-91; prof, 

 math, and astron, Rutgers, 91- Prof, physics, 

 Corcoran Sci. Sch, Washington. D. C, 88-91. 

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

 Fourier's series. Practical applications of 

 Fourier's series. 



Prescott, Prof. Samuel C(ate), Massachusetts In- 

 stitute of Technology, Boston, Mass. Bacteriol- 

 ogy, Biology. South Hampton, N. H, April 5, 

 72. B.S, Mass. Inst. Tech, 94; Woods Hole, 96; 

 Berlin and Copenhagen, 00. Asst. biol, Mass. 

 Inst. Tech, 95-96, instr, 96-03, asst. prof, 03- 

 Instr. bacter, Framingham Nor. Sch, 98-03; 

 Simmons; director, Boston Bio-Chem. Lab; 

 collaborator, ' Centralblatt fur Bakter.' M.A.A; 



