Optical Properties. 



1041 



7305 



certains excitateuz-s de la serie des 

 terres rares, sur dautres excitatems de 

 la inenie serie. C.R., 144, (1303). 

 Sioectre de phosjjliorescence ultra-violet 

 des fluorines. Variations du spectre de 

 phosphorescence d'une meme element 

 dans tin meme diluant. C.R., 144, (30). 



Werner. Quantitative ilessungen der 

 Ai;- und Abklingung getrennter Phos- 

 phoresceazbanden. Diss. Kiel, 1907. 



Trihohimineseence. 



Eck. 4.57SO. Lichterscheinungen, 

 heobachtet beini [Reiben von] eiuigen 

 Salicj-lsaurederivaten [(Salophen und 

 Sahicetol;]. (Hollandisch.) 



Earl. Trihohimineseence de sub- 

 stances contenant du zinc. C.R., 144, 



(841). 



Schorigln. Lichtersclieinungen wali- 

 reud der Kristallisation und die tem- 

 IDoriire 'i'ribohiminescenz. Diss. Frei- 

 burg i. Br., 1905. 



Radiation. 



Barkla & Sadler. 43991. Secondary 

 X-rays and the atomic weight of nickel. 



Bragg. 44702. Ionization of various 

 gases by the a particles of radium. 

 44703. Infiueiice of the velocity of the 

 a j^article upon the stopping jjower of 

 the substance through which it passes. 



Campbell. 11982. H Rays from 

 potassium. 



Crowther. 45343. Fatigue of metals 

 subjected to radium rays. 



Dewar, Sir J. 45540. Use of the 

 radiometer in oliserving small gas 

 pressures ; application to the detection 

 of the gaseous products produced by 

 radio-active bodies. 



Dreyer et Hanssen. La coagulation 

 des albuniines par Taction de la luuiiere 

 ultra-violette et du radium. C'.R., 145, 



(234). 



Eve, A. S. 45975. Aniduiit of radium 

 emanation in the atniosiihei-e near the 

 earth's surface. 



Foix. Theorie du rayonnement des 

 manchons a incandescence. C.R., 145, 



(4(;!). 



Hahn. 47019. Kadioactinium. 



Innes. 47732. Velocity of the 

 cathode particles emitted by various 

 metals [lead, silvei', zinc, platinum and 



gold] under the inlluence of Rontgen 

 rays, and its bearing on the theory of 

 atomic disintegration 



Kleeman. 48149. lonisation of 

 various gases by a-, /8-, and 7-rays. 

 48150 : Secondary cathode rays eujitted 

 b}^ substances when exposed to the 7 

 rays. 



Kurbatov. Theorie de la radiation. 

 (Russe; Z., 39, (Pr.-verb. 1141). 



Laby. 58607. Total ionisation of 

 various gases by the a-rays of uranium. 



Levin. 48885. Absorption of the 

 a-rays from polonium. 



Maier. 49322. Die neuen Strahlun- 

 gen und die physikalische Constitution 

 der ponderablen Materie. 



McClelland & Hackett. 49272. Ab" 

 sfjri5tiou of /3 radium rays bj' matter. 



Mackenzie. 49297. Secondary 



radiation from a plate exposed to rays 

 from radium. 



Makower & Russ. 49332. Effect of 

 high tem))eratures on radium emanation 

 and its products. 



Millochau. 49727. La temperature 



du soleil. 



Schott. 51771. Electron theory of 

 matter and on radiation. 



Soddy it Mackenzie. 52086. Rela- 

 tion between uranium and radium. 



Sterba. 52253. Chemische Wir- 

 kungen der Kathodenstrahlen. 



SzUard. Radioplomb. C.R., 146, 



(116). 



Trautz. 52648. Lumineszenz bei 

 cheniischen Vorgangen. 



Wedekind. 53138. 53144. Fine 

 mit griiner Chemilumineszeuz ver- 

 bundene Reaktion. 



Wilde. 5:W67. Points of chemical 

 philosophy involved in the discovery of 

 radium and properties of its combina- 

 tions. 



Wilson i^ Makower. 53406. Rate of 



decay of the active deposit from radium 



Radloacth'itti. 



Blanc. 44450. Radioactive matter 

 in earth and atmosphere. 



44452. Costituenti radio- 



attivi (lei seilimenti di Echaillons e 

 Salins Moutiers. 



