Iversen — Ives. 



573 



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Astron. Naetir.: Bsrechng. d. Störgn. d. 

 Bihnbewagg. d. Halleyschea Komstea für 

 1835 bis 1910, 4 S. (183, 1910) (auch in St. 

 Petsrsburg, Acad. Bull.). — Ephemeride d. 

 Eickeschea Kometen. — Kurzer Baricht üb. 

 d. Tätigkeit d. Russ. Hiuptsternw. in Pulkowo 

 für d. Zeitrautn v. 19U— 21, 1 S. ()äl5, 22). 



i Pii'iUc. d3 l'o')s?rv. de Poulcovo: Ob^ervats. 

 faites au grand cercle vertical de Poulcovo 

 (8, 13, 14 & 15). 



Russ. Astr. Ges. Mltt.: Neue Methode d. 

 Breitebästimm^. (ru33.). 



St. P.^tersburg. Acad. Bull.: Memoires sur 1. 

 variats. de la latitule de Poulcovo. — - Tables 

 auxil. pour le calcul d. psrturbats. dans le 

 mouvement d. petites planetes d'apres la 

 theorie de O. Backlund. — • Hilfstaf . z. Bereshng. 

 V. angenäherten Bahnen kleiner Planeten v. 

 Hecuba- & Sybilla-Typus & Ableitg. d. Glieder 

 3. Ordng. im Ausdrucke (y)), 58 S. (13, 1930). 



— D3 l'infl. d. termes du 3. ordre de la fonct. 

 pertubatrice du mouvemt. de la terre autour de 

 son centre de gravite sur 1. formules de la 

 natat. 



Außerdem viele kürzere Aufsätze aus ver- 

 schied. Gebieten d. Astron. & Geodäsie & 

 zahlr. allgem. verständl. Abhdlgn. 



Iversen, Felix; Doz., Math., Univ., 

 Helsingfors. 



Helslngfors, Vetenssk. Akad. Öfvers.: Une 



fonct. entiere dont la fonct. inverse presente 

 un ensemble de singularites transcendantes de 

 ia puissance du continu, 17 S. — Qqs. pro- 

 prietes d. fonct. monogenes au voisinage d'un 

 point singulier, 17 S. (58, 1915/16). — Qqs. 

 fonct. entieres qui admettent d. valeurs 

 asymptot. finies, 23 S. (61, 18/19). — Z. Ver- 

 halten analyt. Funktn. in Bereichen, deren 

 Rand eine wesentl. Singularität enthält, 19 S. 

 <64, 20/21). 



Ives, Herbart Eugene; Ph. D. 1908 

 BaUimore; 1903—09 asst. physicist, 

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 physicist, Nat. Electric Lamp Assoc, 

 Cleveland, 0., 12—18 d^ , United Gas Im- 

 provem. Co., Philadelphia, seit 19 d', 

 West Electric Co., New York; * 1882, 

 Juli 31, Philadelphia. 



Mithrsg. d. .Tourn. of Optic. Soc. of America. 

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 Washington 1910. 



Amer. Phys. Soc. Rev.: Scattered light in 

 .spectrophotometry & a new form of spectro- 

 photometer, 7 S. (30, 1910). — Further studies 

 of the f irefly, 14 S. (31, 10). — Note on Crova's 

 method of hetero-chromat. photometry, 8 S. 



— A form of neutral tint absorbing screen for 

 photometr. use^), 8 S. (3«, 11). — A new 

 design of flicker photometer for laboratory 

 colored light photometr., 6 S. (4, 14). — Flicker 

 photometer measurem. by a large group of 

 observers on a monochromat. green solut.*), 6 S. 



— Tae mechanical equivalent of light*) ^), 25 S. 



— The result of plotting the separat, of homo- 

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 of atom. weights (m. O. Stuhlmann jr.), 5 S. — 

 The total luminous efficiencies of present-day 

 illuminants, 5 S. (5, 15). — Physic. photometry 

 with a thermopile artificial eye, 15 S. — Ä 

 precision artific. eye, HS. (6, 15). — The 



mechanic. equival. of light as determined fr. the 

 brightness of the black body^), 14 S. — The 

 black body at the melting point of Pt as 

 a fixed point in photometry, 4 S. — The 

 radiant luminous efficiency of the carbon in- 

 candescent lamp & the mechanic. equival. of 

 light-), 5 S. — Black-body brightness. equat. 

 based on equival. wave-lengths*), 3 S. (8, 16). 



Chicago, Astrophys. Journ.: Experim. study 

 of the Lippmann color photograph, 28 S. (27, 

 1908). — Some photograph. phenomena bearing 

 upon dispers, of light in space, 9 S. (31, 10). 



— The effect of red & infra-red on the decay 

 of phosphoresc. in zinc sulphide^), 24 S. (34, 11). 



— Tae primary Standard of light, 8 S. — The 

 inf luence of temper. on the phenom. of phospho- 

 resc. in the alkaline earth sulphides^), 15 S. 

 (38, 12). — The illuminat.-current relationship 

 in K photo-electric cells, 31 S. (39, 14). — 

 Wave-length sensibility-curves of K photo- 

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 the relat. betw. photr -.jjtr. current & illu- 

 minat. (m. S. Dushman & E. Karrer), 27 S. (43, 

 16). — The Units & nomenclature of radiat. & 

 illuminat., 11 S. (45, 17). — The variat. with 

 time of the characteristics of a K photo-electr. 

 cell as to sensibil. accord. to wave-length, 8 S. 

 (46, 17). — Some large-scale experim. Imitat, 

 the craters of the moon, 6 S. (50, 19). — The 

 voltage- current relat. in central anode photo- 

 electr. cells (m. T. C. Fry), 15 S. (56, 22). 



Journ. of phys. Chemistry Bancroft: Recent 

 advances in our knowledge of gold light, 7 S. — 

 The present condit. of color photogr., 6 S. 

 (17, 1913). 



Phil. Maar.: Studies in the photometry of 

 lights of diff. colours. I: Spectral luminosity 

 curves obtained by the equality of brightness 

 photometer & the flicker photometer under 

 simil. condits., 40 S. — II: Spectr. luminosity 

 curves by the method of critic. frequency, 18 S. 



— III: Distorts. in spectral luminosity curves 

 produced by variats. in the character of the 

 comparison Standard & of the surroundings of 

 the Photometrie field, 7 S. — IV: The addit. 

 of luminosities of diff er. colour, 8 S. — V: The 

 spectral luminosity curve of the average eye, 

 11 S. (24, 12). — The theory of the flicker 

 photometer*), 20 S. (38, 14). — Dass., II: Un- 

 symmetrical condits.*), 32 S. (31, 16). — 

 Visual diffusivity, 15 S. — A polarizat. flicker 

 photometer & some data of theoret. bearing 

 obtained with it, 21 S. (33, 17). — Hue diffe- 

 rence & flicker photometer speed, 13 S. (34, 

 17). — The resolut, of mixed colours by diffe- 

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Physik. Zeltschr.: Dreifarben-Interferenz- 

 bilder, 3 S. (7, 1906). 



Washington, Biir. of Stand. Bull.: A volt 

 Scale for a watts-per-candle meter, 6 S. — 

 A tungsten comparison lamp in the photo- 

 metry of carbon lamps (m. L. R. Woodhull), 4 S. 

 (5, 1908/09). — The daylight efficiency of 

 artific. illumin., 16 S. — White light fr. the 

 Hg-arc & its complementary, 8 S. — Luminous 

 efficiency of the firefly^), 16 S. (6, 09/10). 



Zeltschr. f, wUsensch. Photogr.: Experimen- 

 taluntersuchg. üb. d. Lippmannsche Farbea- 

 photogr., 34 S. (6, 1908). 



Mit ') M. Luckicsh, ') E. F. Kingsbury, ') W. W. 

 Coblentz. 



Ives, .James Edmund, Dr. phil. 1901 

 Worcester, Mass.; stud. 1897 bis 1901 

 Worcaster, Mass.; 1887 Asst. Cura- 



