CONTENTS. 



XV 



379. Magneto-optic rotation, gases . 



380. Verdet's and Kundt's constants . 



381. Values of Kerr's constant .... 



382. Dispersion of Kerr's effect. IngersoU's values 



383. " " " " Foote's 



384. Magnetic susceptibility .... 



385. Variation of the resistance of bismuth in magne 



386. " " " " " nickel " 



387. " " " " " various metals in a 



388. Transverse galvanomagnetic and thermomagnet 



389. Variation of the Hall constant with the tempera 



390. Rontgen rays (x-rays) ionization due to 



391. " " Secondary Rontgen rays 



392. " " " Cathodic rays 



393. " " '* absorption coefficients 



394. X-R spectra and atomic numbers 



395. Radioactivity: production of phosphorescence 



396. " " " a-particles 



397. " heating effects 



398. " various constants 



399. " stopping powers for a rays . 



400. " ♦' " " ^ " 



401. " " *' " y « 



402. " ions produced by the a, ^, and y 



403. " radium emanation ; units 



404. " vapor pressure of Ra emanation 



405. " spectra .... 



406. Miscellaneous constants, molecular, atomic, etc. 



407. Periodic system of the elements . 



Definitions of units 



Index 



ic field 



a 



magnetic 

 c effects 

 ure 



field 



rays 



330 

 330 

 331 

 33^ 

 33^ 

 332 

 333 

 333 

 333 

 334 

 334 

 335 

 335 

 335 

 33^ 

 336 

 337 

 337 

 337 

 338 

 340 

 340 

 340 

 341 

 341 

 341 

 341 

 342 

 343 



345 

 349 



