568 



Hyde — Ignatowsky. 



21 Präsid., Internat. Beleuchtgs.-Komm. ; 

 Cleveland, Ohio ; * 1879, Jan. 3, Baltimore 

 County, Md., XJ.S.A. (Eig. Mitt.) 



Lectures on iUumin. engineering, 1047 S., Balti- 

 more 1910. 



Amer. Phys. Soc. Kev.: Selective radiat. of 

 Pt, 2 S. (31, 1910). — New determinat. of the 

 sei. rad. from Ta, 2 S. (32, 11). — A note on the 

 comparison of high-temp. scales, 2 S. (2, 13). — 

 Color temperatiire scales f or tungsten & carbon 

 (m. F. E. Cady & W. E. Forsythe), 17 S. (10, 

 17). — A new experimental determinat. of the 

 brightness of a black body, & of the mechanical 

 equivalent of light (m. W. E. Forsythe & 

 F. E. Cady), 14 S. (13, 19). — On the distribut. 

 of energy in the visible spectrum of an acetylene 

 flame (m. W. E. Forsythe & F. E. Cady), 10 S. 

 (14, 19). ^ ^^ 



Ann. d. Physik: Bestimmg. d. wahren Tem- 

 peratur fester Körper aus d. Schnittpunkt d- 

 logarithm. Isochromaten im sichtbaren Spek- 

 trum, 5 S. (49, 1916). 



Chicago, Astrophys. Journ.: Slit-width cor" 

 rects. in spectro-photometry & a new form of 

 variable sectored disk, 31 S. (35, 1912). — 

 The synthetic developm. of radiat. iaws for 

 metals, 44 S. (36, 12). ■ — The visibüity of radiat. 

 in the red end of the visible spectrum (m. W. 

 E. Forsythe & F. E. Cady), 9 S. — The effec- 

 tive wave-length of transmission of red pyro- 

 meter glasses & other notes on optical pyro- 

 metry (m. F. E. Cady & W. E. Forsythe), 11 S. 

 (42, 15). — The visibüity of radiat. (m. W. E. 

 Forsythe & F. E. Cady), 24 S. (48, 18). — The 

 goldpoint paUadium-point brightness ratio (m. 

 W. E. Forsythe), 7 S. (51, 20). 



Electrlcal Rev.: A new differential-Watt- 

 percandle meter, 2 S. (62, 1913). — Precision 

 photometer Beach & accessories (m. Cady). 



Ulum. Engin. Soc. Trans.: Primary, secondary 

 & working Standards of light, 16 S. (2, 1907). 



— Selective emission of incandesc. lamps as 

 determined by new Photometrie methods (m. 

 Cady & G. W. Middlekauf), 17 S. — Tests of 

 the moore tube installats. (m. J. Woodwell). — 

 New York Post- Office, 9 S. (4, 09). — A study 

 of energy losses in electric incandesc. lamps 

 (m. Cady & A. G. Worthing), 20 S. (6, 11). — 

 Color temp. & brightness of various iÜuminants 

 (m. Forsythe), 12 S. (16, 21). 



Journ. olf Franklin Inst.: The phys. product. 

 of light, 46 S. (169 & 170, 1910). — The relat. 

 merits of monocular & binocular field-glasses 

 (m. P. W. Cobb, H. M. Johnson & W. Weniger), 

 47 S. (189, 20). 



Journ. of the Opt. Soc: A new principle & 

 its applicat. to the Lummer-Brodhun photo- 

 meter (m. Cady), 15 S. (6, 1922). 



Washington, Bur. of Stand. Bull.: The theory 

 of the Matthews & the Russell-Leonard photo- 

 meters for the measurem. of mean spherical 

 & mean hemispherical intensities, 20 S. • — The 

 use of white walls in a Photometrie laboratory, 

 4 S. (1, 1904/05). — Talbot's as applied to the 

 rotating sectored disk, 32 S. — An efficiency 

 meter for electric incandescent lamps (m. H. B. 

 Brooks), 16 S. — The determinat. of the mean 

 horizontal intensity of incandescent lamps by 

 the rotating lamp method (m. F. E. Cady), 24 S. 

 (2, 06). — Desgl., 13 S. — A comparison of 

 the unit of luminous intensity of the United 

 States with those of Germany, England & 

 France, 16 S. — Geometrical theory of radiating 

 surfaces with discussion of light tubes, 24 S. 



— - An explanat. of the short life of frosted 

 lamps, 4 S. — The determinat. of the mean 

 horizontal intensity of incandescent lamps (m. 

 F. E. Cady), 14 S. (3, 07). — A comparative 

 study of platin & frosted lamps (m. F. E. 

 Cady), 30 S. (4, 07/08). 



I. 



^^ laggi, G. Einest, Lic. es-sc. math. 

 1885 Besan9on; * 1864, Juli 17, Yverdun, 

 Schweiz. 



Nouv. V. Ann. de Math.: Determinat. d. 

 fonct. d'une variable qui admettent I. Substitut, 

 d'un groupe qcq. donne, 15, 12 & 30 S. — 

 Applicat. aux foncts. circul. & aux foncts. 

 ellipt. d'une meth. gener. de determinat. d. 

 fonct. dont on donne le groupe d. Substitut., 

 18 S. — L. zeros d. foncts. entieres, 9 S. (2, 

 1902). — Transformat, d. fonct. d'une variable, 

 22 & 12 S. (3, 03). 



Ichinohe, Naozo; Lect., Astron., 

 Univ., Tokio. 



Astron. Naclir.: Observat. of right ascensions 

 of the fundamental stars with a transit micro- 

 meter, 8 S. — The period & light curve of the 

 variable star 87' 1906 Draconis, 3 S. (175, 1907). 

 • — Observat. of Mira Ceti, 4 S. — On S Sextantis 



6 43.1906 Crateris, 2 S. (182, 09). — The 

 variable star u Herculis, 3 S. (183, 10). 



Chicago, Astrophys. Journ.: Orbit of the 

 spectroscopic binary k Cancri, 5 S. (25, 1907). 

 — Orbit of the spectroscopic binary fx Sagittarii. 



7 S. — The spectroscopic binary rj Virginia, 

 10 S. (26, 07). 



Tokyo, Univ. Coli. Journ.: Studies on the 

 variables of the Algol-type, 51 S. (27, 1909—11). 



V. Ignatowsky, Waldemar, Dr. phil.; 

 Privatdoz., theor. Phys., Techn. Hoch- 

 sch., Charlottenburg. 



D. Vektoranalysis & ihre Anwendg. in d. 

 theoret. Physik. II. Tl.: Anwendg. d. Vektor- 

 analysis in d. theoret. Physik, 123 S., Leipzig 

 1910. 



Ann. d. Physik: Reflex, elektromagnet, 

 Wellen an e. Draht, 28 & 1 S. (18, 1905). — 

 Diffrakt. & Reflex., abgeleitet aus den Max- 

 wellschen Gleichgn., 30, 19 & 1 S. (23, 25 & 

 26, 07 & 08). — Berechng. d. Widerst, e. Drah- 

 tes bei d. Reflex, v. elektromagnet. Wellen, 

 2 S. (23, 07). — D. starre Körper & d. Relativi- 

 tätsprinzip, 24 & 3 S. (33 & 34, 10 & 11). — 

 Tot. Reflex., 10 S. — Experiment. Untersuchg. 

 z. Totalreflex, (m. E. Oettinger), 12 S. (37, 12). 

 — Theorie d. Gitter, 68 S. (44, 14). 



Archiv d. Math. & Physik: Ponderomotor. 

 Wirkgn. im elektrostat. Felde, 15 & 31 S. (16, 

 1910). — D. Relativitätsprinzip, 24 & 24 S. 

 (17 & 18, 11). — Z. Integrat. d. Gleichg. 



'^' "" + a (J^f)' + hx = Q, 7 S. (17. 11). — 



dt^ 



\dt I 



