AMEKICAX MEN OF SCIENCE 



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tor, fourth dist, S. A. T. C, 18; director, div. 

 home comforts, N. C. Highway Commission, 19- 

 Assoc. Elcc. Eng; Eng. Educ. Illumination; 

 economics of small power plants. 

 Dahlgren, Prof. Ulric, Princeton University, 

 Princeton, N. J. *Ristology. Brooklyn, N. Y. 

 Dec. 27, 70. A.B, Princeton, 94, M.S, 96. Instr. 

 hiol, Princeton, 95-99, asst. prof, 99-11, prof, 

 11- Instr. invert, zool. Woods Hole, 96-98, asst. 

 director, 99- ; trustee, Harpswell Lab, 14- Potts 

 gold medal, Franklin Inst, 17. A.A; Soc. Nat; 

 Soc. Zool; Ass. Anat. Principles of animal his- 

 tology; production of light by organisms; giant 

 ganglion cell apparatus of fishes; breathing 

 valves of fishes; dorsal nervous apparatus of 

 fishes ; electric and luminous organs of fishes ; 

 evolution of electric organs from muscle; static 

 and auditory organs of mollusks. 



Dains, Dr. F(rank) B(umett), 1224 Louisiana St, 



Lawrence, Kans. Chemistry. Gouverneur, N. 

 Y, Jan. 15, 69. Ph.B, Wesleyan. 90, M.S, 91; 

 fellow, Chicago, 94-95, Ph.D, 98; Berlin and 

 Freiburg, 01-02. Asst. cliem, "Wesleyan, 91-93 ; 

 asst. prof, Kansas, 93-94; Northwestern, 95-02; 

 prof, Washburn, 02-11 ; assoc. prof, Kansas, 11- 

 14, prof, 14- A.A; Chem. Soc; Kans. Acad, 

 (pres, 09) ; Chem. Gesell. Aldehydes; urea 

 ethers; substituted ureas; thiazoles; pyrazoles; 

 halogen compounds; the interaction of formami- 

 dins with bodies containing methylene hydrogen. 



Dake, Prof. C(harles) L(aurence), Missouri 

 School of Mines, Eolla, Mo. Geology. Chase- 

 burg, Wis, April 2, 83. A.B, Wisconsin, 11, fel- 

 low, 11-12, A.M, 12; fellow, Columbia, 20-21. 

 Asst. geol, Williams, 12-13; asst. prof, ifo. Scli. 

 Mines, 13-18, assoc. prof, 18- Wis. Geol. and 

 Nat. Hist. Surv, summer, 10; asst. geologist, 



A. C. and H. B. K. E, summer, 11 ; Longyear 

 Prospecting Co, summer, 12; Mo. Bur. Geol. and 

 Mines, summers, 13, 14, 15, 19; Wyo. Geol. Surv, 

 summer, 16. Min. and Metal. Eng; Eng. Educ 

 Origin of iron ores; sand and gravel resources 

 of Missouri; petroleum geology. 



Dakin, Dr. H(enry) D(rysdale), Edgehill, Scar- 

 borough-on-Hudson. N. Y. *Chemistry. London, 

 England, March 12, 80. B.S, Manchester, 01; 

 1851 Exhibition scholar at London and Heidel- 

 berg; Sc.D, Leeds, 07; Yale, 18. Demonstrator 

 chem, Leeds, 01-08; research worker. Lister 

 Inst. Prev. Med, London, Heidelierg and Her- 

 ter's Lab, N. Y. Chevalier, Legion d'honneur. 

 A.A; Biochem. Soc; Soc. Biol. Chem; Physiol. 

 Soc; Soc. Exp. Biol; Harvey Soc; fel. Royal 

 Soc; Inst. Chem. Gt. Britain and Ireland; Lon- 

 don Chem. Soc; Chem. Gesell. Organic chem- 

 istry and its biological applications ; chemistry 

 of enzyme action; chemistry of animal oxida- 

 tive processes; antiseptics. 



Dalaker, Prof. H(ans) H, 523 Walnut St, S, E, 

 Minneapolis, Minn. Mathematics. Renneso, 

 Norway, Dec. 6, 71. A.B, Minnesota, 02; Cor- 

 nell, 06-07, fellow, 07-08, Ph.D, 17. Instr, 

 Decorah Inst, Iowa, 93-97 ; math, Minnesota, 

 02-07. asst. prof, eng. col, OS- Math. Soc. 

 Functions of the complex variable; automorphic 

 functions. 



Dale, Dr. J(iiliaii) K(alfus), 119 S. Maplewood 

 Ave, Peoria, 111. Chemistry. Lexington, Kv, 

 April 13, 89. A.B, Princeton, 11, A.M, 13, fel- 

 11 



low, 13-14, Ph.D, 14. Asst, Princeton, 11-13; 

 asst. chemist, bur. chem, U. S. Dept. Agr, 14- 

 19; research chemist, U. S. Food Products Corp, 

 19- Chem. Soc. Carbohydrate chemistry; rare 

 sugars. 



Dale, Prof. Nelson C, Hamilton College, Clinton, 

 N. Y. Geology. Newport, R. I, July 9, 80. 

 B.S, Middlebury, 03; A.M, Brown, 10; fellow, 

 Princeton, 13-14, Ph.D, 14. Asst. geol. Brown, 

 08-10, instr, 10-12; asst, Princeton, 12-13; asst. 

 prof, Hamilton, 14-16, prof, 16- Aid and field 

 asst. to T. N. Dale, U. S. Geol. Surv, summers, 

 99-03 ; asst. geologist, R. I. Nat. Resources 

 Surv, 09-12; mem. Princeton exped. to New- 

 foundland, 13; Vt. Geol. Surv, 14, 15; N. Y. 

 Geol. Surv, 16; consulting geologist, S. Manga- 

 nese Corp, summer, 18; N. S. Steel and Coal Co. 

 summer, 20. Chemical geology; ore deposits; 

 petrology. 



Dale, T(homas) Nelson, 42 Cornell St, Springfield, 

 Mass. Geology, Botany. New York, N. Y, 

 Nov. 25, 45. Private schools and instruction; 

 hon. A. M, Williams, 96. Prof, geol, zool. and 

 bot, Drury, 77; geol, Vassar, 78; instr, Wil- 

 liams, 93-97, geol. and bot, 97-01; field asst, 

 U. S. Geol. Surv, 85-89, asst. geologist, 90-91, 

 geologist, 92-20; consulting geologist, 20- Cor. 

 Vienna Geol. Eeiehsanstalt ; Soc. g^ol. de France. 

 Structural and areal geology of the Taconic 

 region; secondary structures in stratified rock; 

 causes of the Taconic landscape; slate; New 

 England granites; Vermont marbles; Tennessee, 

 Georgia and Alabama marbles; lime-producing 

 belt of western Massachusetts and eastern New 

 York. 



Dales, Dr. Benton, B. F. Goodrich Co, Department 

 19 B, Akron, Ohio. Chemistry. Lincoln, Nebr, 

 Dec. 11, 77. B.S, Nebraska, 97, A.M, 99; fel- 

 low, Cornell, 00-01, Ph.D, 01. Asst. chem, Ne- 

 braska, 97-99; Cornell, 01-03; asst. prof, Ne- 

 braska, 03-06, assoc. prof, 06-08, prof, and 

 head of dept, 08-18; research chemist, B. F. 

 Goodrich Co, 18- A.A; Chem. Soc. Rare 

 earths; iron; rubber. 



Dall, Prof. W(illiam) H(ealey), U. S. National 

 Museum, Washington, D. C. *Molluslcs. Bos- 

 ton, Mass, Aug. 21, 45. Under Agassiz, mu- 

 seum comp. zool, Harvard, 62-63 ; hon. A.M, 

 Wesleyan, 88 ; Sc.D, Pennsylvania, 04 ; LL.D, 

 George Washington. Chief, scientific corps, 

 West. Union Tel. exped. to Alaska, 65-68; hon. 

 curator, div. molluslcs, V. S. Nat. Museum, 69-; 

 asst, U, S. Coast Surv, 70-85; paleontologist, 

 V. S. Geol. Surv, 85- Prof, invert, paleont, 

 Wagner Inst, Phila, 93-; hon. curator. Bishop 

 Museum, Honolulu, 99. Wagner gold medal, 99. 

 Nat. Acad; A.A. (sec'y, B, 77-79, v. pres, 82, 

 85); Soc. Nat; Paleont. Soc. (pres, 11); Philos. 

 Soe; Am. Acad; and other American and for- 

 eign societies. Geography of northwestern 

 America and Alaska; recent and fossil mollusks 

 and brachiopods ; North American Tertiary and 

 recent mollusk fauna, especially Pelecj^oda. 



Dallenbach, Dr. Karl M, Cornell University, 

 Ithaca, N. Y. Psychology. Champaign, 111, 

 Oct. 20, 87. A.B, Illinois, 10; fellow, Pitts- 

 burgh, 10-11, A.M, 11; fellow, Cornell, 11-12, 

 Ph.D, 13. Asst. psychol, Illinois, 09-10; instr, 

 Oregon, 13-15; Ohio State, 15-16; Cornell, 16- 



