INDEX
-
59,1
Voltmeters:
'
Wiechertè
—
Braun, 592
—
——e/m of electrons, 26
__
generatmg,
444
‘
’
Wiedemann—Franz law, 104
—
h1gh voltage,
442
Willemite,
-
‘
'
_
Kelvm,
404
'
Williams and
,_
—
resrstance types, 442
'Wilson, C. T. R.;
_
——
rotating, 444
—
electroscope, 389
'
-—
see electroseopes,
electrometers.
—
expansion chamber, 433
_
—
see d. c. ampliers.
,
Wilson, H. A.;
'
_
'
Von Laue, see Lane:
—
electron charge, 2
Volz, 431
Wilson, V. C., 345
_
Witka, 297'
.
.
.
'
Wolf, 35
f
'
Walker, 204
'
Wollan: 213
Walter and Pohl, 205
,
—
Compton and Bennett, 414
.
.
-
‘
Water:
'_
Work function:
f
——
pump,
354
'
'
——
photoeleçtric, 82
—
——
vapor pressure of, 374, 355
-—
table, 459
,
Wave:
,
-—
thermionic, 107—110
’
_
——
equation, 50
,
.
Wulf electrometer, 407
,
—
form, of rectiers, 297
,
Wynn—Wilüams, 421
'
.
——
packet, 60
'
-
,
'
..
-,
-
‘.
.
—-—Phase, 61
X—ray tubes:
.
…
,
'
wave—__1ength:
.
;
—
circuits, 193, 195, 297
,
-" '
‘
__.'__equation, 51
j
_
,
448
_
._
.,
'
method, 55, 58
,
_
«—
high-frequency,
..
__._
;
__
table, 466
‘
——
hot cathode, 194
“,
——
raYS,
277
,
‘
'—
metal, 194
î
'—
’
.
.
—
of heaVÿ ParticleS,'62
pressure in,
'
‘
?
——
of light, vs. potential,
151 ;… "
-—
vacuum of, 194 »
'
'
_
—ofx—raysz
»
.
…
…
X-rays: 191—221
._
:Ï
__
+——— by absor‘ption,
202 '
a
f
—
"
——
by crystals, 205-_.
‘
'
_
.
-——6XP€r,214
‘
,
__
ÇXPCr':
218
———by g‘fàtiñg,
:
—-—1>roœssesî@l
) - "
'
…