CONTENTS. 



XIX 



449- 

 450- 

 451- 

 452. 

 453- 

 454- 

 455- 

 456. 

 457- 

 458. 



459- 

 460. 

 461. 

 462. 



463- 

 464. 



465- 

 466. 

 467. 

 468. 

 469. 

 470. 

 471. 

 472. 



473- 

 474- 



Magnetic properties of various types of iron and steel 369 



" " " a specimen of very pure iron (0.017% C) • • 369 



" " " electrical sheets •269 



" " " American magnet steel 370 



" " " a ferro-cobalt alloy oyo 



" " " a ring sample transformer steel, weak field , . 370 



" " " iron in very weak fields 3yo 



Permeability of some specimens of Table 445 371 



Magnetic properties of soft iron at 0° and 100° C 371 



" steel at 0° and 100° C 371 



Magnetism and temperature, critical temperature 372 



Temperature variation for paramagnetic substances 372 



" effect on susceptibility of diamagnetic elements .... 372 



" " " " " paramagnetic elements . . . 372 



Magnetic properties of cobalt at 0° and 100° C 373 



" nickel " " " " " 373 



" " " magnetite 373 



" " " Lowmoor wrought iron 373 



" " " Vicker's tool steel 373 



" " " Hadfield's manganese steel 373 



" " " saturation values for steels 373 



Demagnetizing factors for rods 374 



■■■:/■■, 374 



Dissipation of energy in cyclic mangetization, Steinmetz constant . 375 



Energy losses in transformer steels 376 



Magnetic susceptibility 377 



Magneto-optic Rotation 



475. Magneto-optic rotation, general discussion 378 



476. " " solids, Verdet's constant 379 



477. " " liquids, Verdet's constant 380 



478. " " salt and acid water solutions 381 



479. " ' " gases, Verdet's constant 382 



480. Verdet's and Kundt's constants 382 



481. Values of Kerr's constant 383 



482. Dispersion of Kerr ejffect 2)^2) 



483. " " " " 383 



Various Magnetic Effects 

 484. Resistance of metals, variation in transverse magnetic field (Bi) 



384 



485. Increase of resistance in transverse magnetic field (Ni) 384 



486. Change of resistance of various metals in magnetic field 384 



487. Transverse galvanomagnetic and thermomagnetic effects 385 



488. Variation of Hall constant with temperature 385 



