XIV TABLE OF CONTENTS. 



(c) Specimen of Westinghouse No. 4 transformer 275 



(ft} " Thomson-Houston 'i 5oo-watt transformer . . . . 275 



286. Composition and magnetic properties of iron and steel 276 



287. Permeability of some specimens in Table 286 278 



288. Magnetic properties of soft iron at o and 100 C . 278 



289. " " " steel at o and 100 C. . 278 



290. " " " cobalt at 100 C 279 



291. " " " nickel at 100 C 279 



292. " " magnetite 2 79 



293. " Lowmoor wrought iron in intense fields . . .279 



294. " " Vicker's tool steel in intense fields 279 



295- " Hadfield's manganese steel in intense fields . . 279 



296. Saturation values for different steels 279 



297. Magnetic properties of very weak fields 280 



298. Dissipation of energy in the cyclic magnetization of magnetic substances 280 

 299- " " " " " " " cable transformers . 280 



300. " " " " " " various substances . 281 



301. " " transformer cores . 282 



302. " " various specimens of 



soft iron . . . 283 

 Magneto-optic rotation, Verdet's constant 284 



303. " in solids 285 



304. " " " liquids 286 



305. " " solutions of acids and salts in water . . . 288 



306. " " " " " salts in alcohol 290 



307. " in hydrochloric acid 290 



308. " " "gases 291 



309. Miscellaneous values of Verdet's and Kundt's constants 291 



310. " " susceptibility for liquids and gases .... 292 



311. Kerr's constants for iron, nickel, cobalt, and magnetite 292 



312. Effect of magnetic field on the electric resistance of bismuth (initial 



resistance of one ohm for zero field and various temperatures) . . 293 



313. Effect of magnetic field on the electric resistance of bismuth (initial 



resistance one ohm for zero field and temperature zero Centigrade) 293 



314. Specific heat of various solids and liquids 294 



315. Specific heat of metals 296 



