768 



AMERICAX MEN OF SCIENCE 



Sta. Farm and ranch economics; farm man- 

 agement; farm housing; grazing. 



Youngken, Prof. Heber W(ilkinson), 145 N. 

 Tenth St, Philadelphia, Pa. Botany, Pharma- 

 cognosy. Bucks Co, Pa, Oct. 31, 85. Ph.G, 

 Medico-Chirurg. Col, Phila, 05, 09-11; A.B, 

 Bucknell, 09, A.M, 12; M.S, Pennsylvania, 1-4, 

 Ph.D, 15; Ph.M, Phila. Col. Pharmacy, 19. 

 Demonstrator biol, pharmacog. and bacter, Med- 

 ico-Chirurg. Col, Phila, 09-11, instr. bot. and 

 pharmacog, 11-12, asst. prof, 12-15, adj. prof, 

 15-16, prof, 16; asst. prof, PhVa. Col. Phar- 

 macy, 16-17, prof, and director, micros, labora- 

 tories, 17- Prof, biol, Ursinus, 18-19. A.A; 

 Bot. Soc; Pharmaeeut. Ass; Phila. Acad; Phila. 

 Bot. Club. Pharmaceutical botany. 



Youtz, Prof. Lewis A(ddison), 463 South St, Ap- 

 pleton, Wis. Chemistrxi. Canton, Ohio, Julv 21, 

 64. Ph.B, Simpson, 90, Ph.M, 93, M.S," 02; 

 Ph.D, Columbia, 02. Instr. nat. science, high 

 sch, Des Moines, Iowa, 91-93 ; assoc. prof, sci- 

 ence, Simpson, 93-99; prof, Mont. Wesleyan, 

 99-00; chem, Lawrence, 02- Chem. Soc; Soc. 

 Chem. Indust; Wis. Acad. The determination 

 of antimony; antimony compounds; the purity 

 and volatility of precipitated antimony sulphid. 



Yowell, Dr. Everett I(rving), Corbett and Griest 

 Aves, Cincinnati, Ohio. Astronomy. Cincin- 

 nati, Jan. 2, 70. C.E, Cincinnati, 91, M.S, 93, 

 Ph.D, 11; Gottingen, 94-95. Instr. math, Cin- 

 cinnati, 91-94, 95-97; asst. Cincinnati Ob- 

 servatory, 95-01 ; computer, U. S. Naval Ob- 

 servatory, 01-06; instr. math, U. S. Naval 

 Acad, 06-09; first asst, Cincinnati Observatory, 

 09- Mem. U. S. Naval Observatory eclipse ex- 

 ped, 05; int. latitude observer, 10-16. A.A; 

 Math. Soc; Astron. Soc. Meridian circle ob- 

 servations; variation of latitude; proper motion 

 of stars; orbits of comets and asteroids. 



Yuncker, Prof. T(ruman) G{eorge), Green- 

 castle, Ind. Botany. Carson City, Mich, March 

 20, 91. B.S, Mich. Agr. Col, 14; A.M, Ne- 

 braska. 15; fellow. Illinois, 19, Ph.D, 19. Asst. 

 bot, Illinois, 17-18; asst. prof, hiol, DePaniw, 

 19-20, assoc. prof, 20, j^rof, 21- A.A; Bot. Soc. 

 North American and West Indian species of 

 Cuscuta. 



Z 



Zahm, Prof. A(lbert) F(rancis), Catholic Univer- 

 sity, Washington, D. C. *Mechanics. New Lex- 

 ington, Ohio. A.M, Notre Dame, 85; M.E, Cor- 

 nell, 92; Ph.D, Hopkins, 98. Prof, math, Notre 

 Dame, 85-89, math, and mech, 90-92; mech, 

 Catholic Univ, 95- Int. Conf. Aerial Naviga- 

 tion (gen. sec'y, 93, official delegate, 00). 

 Mech. Eng; Wash. Philos. Soc. Resistance of 

 air below 1,000 feet per second; a chronograph 

 for small intervals of time; aerodynamics; 

 aerial navigation; skin friction of air up to 

 30 miles an hour; absolute measurement of air 

 velocity; absolute pressure of air on normal 

 standard plane; lift and drift of arched sur- 

 faces; law of interference of superposed planes. 



Zahm, Dr. J(ohn) A(ugustine), Holy Cross Col- 

 lege, Brookland, D. C. Physics. New Lexing- 

 ton, Ohio, June 14, 51. A.B, A.M, Notre Dame, 

 71; Ph.D. (from Pope Leo XIII), 95. Entered 

 Order of Holy Cross, 71 ; in charge, scientific 

 dept, Notre Dame, 74-95. Pres, board of trus- 



tees, Notre Dame. Soc. de Physique; Soc. ScL 

 de Bruxelles; Arcadia Rome; Soc. Dantesca, 

 Florence; N.' Y. Authors Club. Evolution and 

 dogma; sound and music; Bible science and 

 faith; scientific theory and Catholic doctrine; 

 science and the church; following the conquista- 

 dores; woman in science. 



Zanetti, Prof. J(oaquin) Enrique, Columbia Uni- 

 versity, New York, N. Y. Chemistry. Santo 

 Domingo, W. I, Jan. 20, 85. A.B, Harvard, 06, 

 A.M, 07, Ph.D, 09. Austin teaching fellow org. 

 chem, Harvard, 07-09; instr. chem, Columbia, 

 09-12; director, Lab. Indust. Chem, Monte- 

 video, Uruguay, 12-13 ; asst. prof, chem, Colum- 

 hia, 13- Capt, ordnance dept, A.E.F, 17-18; 

 major, C.W.S, 18, lieut. col, 18-19; sec'y for 

 the U. S, Interallied Commission for Chem. 

 Warfare Supplies, 18-19. Legion d'honneur; 



D. S. order; officer, Order Crown of Italy. A. A; 

 Chem. Soc; Soc. Chem. Indust. Hydrocarbons; 

 furoyl acetic ester; action of silicon tetrachlorid 

 on fatty acids; thermal decomposition of natu- 

 ral gas condensate, benzene, propane-butane and 

 ethane-butane. 



de Zeeuw, Prof. Richard, East Lansing, Mich. 

 Botany. Alton, Iowa, March 15, 80. A.B, 

 Hope, 06, hon. A.M, 09; A.B. Michigan, 07, 

 Ph.D, 09. Instr. hot, Mich. Agr. Col, 09-10, 

 asst. prof, 10-13, assoc. prof, 13- A.A; Bot. 

 Soc; Mich. Acad, (sec'y, 11). Comparative 

 viability of seeds; seed sterilization; botanical 

 technique. 



Zehring, Prof. W(illiara) A(rthur), Purdue Uni- 

 ver.sity. La Fayette, Ind. Mathematics. Ger- 

 mantown, Ohio,' Dec. 6, 76. A.B, Otterbein, 98, 

 A.M, 03; A.B, Harvard, 03. Prof, math, East- 

 ern, 98-02; Campbell, 03-05; assoc. prof, Pur- 

 due, 05- Math. Soc; Ind. Acad. 



Zeisberg, Fred(erick) C(lemens), E. I. duPont 

 de Nemours and Co, Wilmington, Del. Chem- 

 istry. Jefferson City, Mo, May 13, 88. Vir- 

 ginia. Chemist, Mathieson Alkali Works, 07-03; 



E. I. duPont de Nemours and Co, 09-17, mana- 

 ger, intelligence div. and later elementary process 

 div, chem. dept, 19- Chem. Soc. (sec'y, Del. 

 sect, 19); Electrochem. Soc; Chem. Eng. Oxi- 

 dation of ammonia; sulphuric acid manufacture; 

 explosives; nitric acid manufacture and concen- 

 tration; fixation of nitrogen. 



Zeit, Prof. F(rederick) Robert, 4016 Vincennes 

 Ave, Chicago, 111. Pathology. Switzerland, 

 March 13, 64. Gymnasium, Elberfeld, Cologne, 

 Diisseldorf; M.D, Western Reserve, 87. Asst. 

 and instr. path, and bacter. Northwestern, 99- 

 00, prof, 00-01; Post-Grad. Med. Sch, Chicago, 

 00-18; path, Northwestern, 02- Asst. and later 

 collaborator of Prof. Edwin Klebs, 97-00; pa- 

 tliologist, Wesley, Merei\v, Provident. Ali^xian 

 Brothers and Grant Hospitals. A.A; Ass. Path, 

 and Baet; Am. Med. Ass; Soc. Med. Hist; Chi- 

 cago Path. Soc. (pres, 04). Pathology of tu- 

 mors; effect of electric currents on bacteria; 

 longevity of typhoid bacilli in lake and river 

 water; pathology and bacteriology of uretero- 

 intestinal anastomosis; congenital atresia of 

 esophagus; acute glanders in man; etiology of 

 s\'philis; histogenesis of endothelial tumors. 



Zeleny, Prof. Anthony, University of Minne- 

 sota, Minneapolis, Minn. *Physics. Racine, 



