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Logarithmic intervals in case of temper..
Magnus, Thermo-electric experiments of..
Magnetic battery, Funkler's form of.......

Page.
142

.110, 207, 220, 224

153

capacity varies largely between blue annealed and soft.
constants of steel and hardness.

124

126-128, 130-135

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results of Ruths, Table 66

retentiveness and dimensions, Relation between.

Magnetizability and dimensions, Relation between...

and hardness, Relation between.
Maxima and minima of...

Unique maximum of ....

Magnetizing force, Intensity of..

Magnetism and carburation

and density....

and dimension-ratio, Special discussion of..
and hardness

146

163

142, 198

139, 197

198

145, 198

107, 118, 153

112

144

142

.112, 136–139, 197

and hardness (earlier work), Digest of..

Magnets, How to temper and magnetize.....

111

and resistance, Simultaneous variations of.
and temperature, Temporary and permanent effects of.

Mechanical constants of, Tables 49, 51......

Magnetization, Apparatus for measuring electrical effect of..

circular, Electrical effect of

Classification-function based on intensity of.
hardness, dimensions of steel, Tables 50, 53.
hardness, etc., Digest of Tables 54-65..
Method of....

Pre-existing, effects of..

Resistance-effect of..

Thermo-electric effect of..

Unique maximum of..

Malleable cast-iron, Electrical behavior of..

Hardness of, without electrical effect
Hardness of, without volume effect

Matthiessen on electrical behavior of alloys......

on general temperature-coefficients for metals..
on temperature-coefficients of alloys.....
Views of, on the constitution of iron-carburets.
and Hockin on method of resistance-measurement.
and v. Bose on annealing effect in drawn wires..
and Vogt on temperature-coefficients of alloys, &c.

Maxima of magnetization
of resistance of steel

126-128, 130-135

.136-138, 140-142

118, 119

159

105

.104, 108, 109, 197, 221

.5, 8, 145, 198

100-102
103, 197

103

80, 81, 84

24

16

78,95
17, 121

93

.20, 84, 85

140, 198
177, 195

.155, 161, 164

151
171, 200

125, 129, 152, 155, 160, 164

106
105, 205
202

Maxima of thermo-electric power, etc..
Maximum density of steel.....

of permanent hardness defined

of permanent magnetism for 100°. (See Limits.)
variation of electrical constants in iron-carburets
Maxwell, Thermo-electric series interpreted by.............
Mayer on deformation accompanying magnetization.
Metcalf, Magnetism, hardness, etc., discussed by..
Meyer on the coefficient of magnetization..
Minima of magnetization....

Moser and Riess, Magnetic researches of

on magnets successively annealed..
Mousson on magnetism and temperature...

on resistance-effect of temper, strains, etc
Structure of hard steel described by...
on temperature-coefficient, iron and steel
Thermo-electric series given by

Müller, Magnetic experiments of

on resistance-effect of high temperature...

Negative thermo-electrically defined

Neutral point, thermo-electric defined....

Nomenclature referring to slow and rapid cooling

Obach, Tables of, for Wheatstone's bridge.....

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magnetism, Maximum of, at 100°. (See Limits.)

Percy-Wedding on decarburation..........

on iron-carburets..

on malleable cast-iron..

on silver-steel..

on temper.....

Pictet on magnetism and carburation

Phenomena of annealing, General laws of

Plücker, magn tic experiments of

Poggendorff's mirror galvanometer

Poloni on magnetism and temperature

Polycarburet, Karsten's theory regarding

Paro
.40, 44, 195

6

56

186, 187

7

104

111

114 .

139, 198

154, 159, 167
158

151

.70, 208, 220, 224

96

15

7

.111, 112, 203

90

6

40, 44

175

37

5

.8, 18, 19, 113, 139, 142, 203

152, 163
208

166, 169, 170

8,56

111

175

76

101

178

173

111, 112

55, 195

111, 203

120

151, 154

Positive thermo-electrically defined..

Pre-existing magnetization, Effect of, on magnetizability..

Quality of carburation, Meaning of

Ratio of dimensions, General effect of..

Resistance a minimum after gentle ignition

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and magnetism, Simultaneous variations of..

and magnetization, Simultaneous variations of, Tables 68, 71, 72,

75

and temperature, Equation of, for steel, etc..

at points of contact, Importance of...........

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Relation of, to thermo-electric hardness, Table 34

(See Thermo-electric behavior and power.)
Value of oxide-coats of steel in terms of..
Retentiveness, and dimensions, Relation between.
Magnetic.....

Riess. (See Moser.)

Righi on magnetism and hardness
Rose, Joshua, on tempering .....
Rowland, Magnetic experiments of
Rules for tempering and magnetizing
Ruths, Magnetic experiments of ...

Magnetic experiments of, discussed.

Sauerwald, Galvanometer made by

Scheme for researches with steel, General

Sections of wires how measured...

Seebeck on thermo-electric scale

Senguerd, Faucet devised by

Sensitiveness of the electrical properties of iron-carbides

Series of iron-carburets......

Siemens' mercury unit, Value of.

Silver-steel, Character of.

Soft iron, Electrical behavior of.

Soft steel, Electrical behavior of.

"Soft" state, Properties of...

Softening, Method adopted for

Specific magnetism defined

Strain of drawn hardness, General character of.

of temper, Electrical effect of, etc....

Magnetic effect of changes of ....

.41, 63, 215, 216

.41, 43, 216

[blocks in formation]

Steel annealed at t2°, then exposed to t° (successive annealing), Tables 29, 30.57, 58, 59

[blocks in formation]

Thermo-electric behavior of, annealed in steam, Tables 9 to 15..

Thermo-electric behavior and resistance of:

43-46

annealed at 66°, Tables 16-18.....

47,48

annealed at 100°, Tables 19-21.

annealed at 1850, Tables 22-24

49,50

51,52

Steel, thermo-electric behavior and resistance of-Continued.

annealed at 330°, Table 25-27.

annealed in oil, Tables 7, VII..

annealed soft, Table 31....

Thermo-electric hardness and resistance of, Table 34

Page.

53, 54
41, 216

60

66

Thermo-electric power and resistance of, Table 8....

43, 62

Thermo-electric power and temper of, mean results, Table 28

54

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Sundell on electrical behavior of alloys

Table 1, on the temperature-coefficient, resistance, density, and dimensions
of steel rods......

2, on the temperature-coefficient, resistance, and temper (oxide-coats)
of steel rods......

3, on the temperature-coefficient and resistance of steel rods, practical
digest......

4, on the temperature-coefficient and conductivity of iron...........

5, on the temperature-coefficient and resistance of iron, digest.......
6, on the temperature-coefficient, resistance, and dimensions of cast-iron
rods.....

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7, on the thermo-electrics and resistance of steel annealed in oil....
8, on the thermo-electric power and resistance of steel annealed in oil.
9, 10, 11, 12, 13, 14, 15, on the thermo-electric behavior of steel an-
nealed in steam for different lengths of time.....

41, 42

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43, 46

16, 17, 18, on the thermo-electric behavior and resistance of steel an-
nealed at 66°....

47,48

19, 20, 21, on the thermo-electric behavior and resistance of steel an-
nealed at 100°

49,50

22, 23, 24, on the thermo-electric behavior and resistance of steel an-
nealed at 185°

51,52

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25, 26, 27, on the thermo-electric behavior and resistance of steel an-
nealed at 330°

53, 54

28, on the thermo-electric power of steel annealed at 66°, 100°, 185°,
330°, general digest.....

54

29, 30, on the electrical behavior of steel annealed at t2°, then exposed
to to, to > t.......

..57, 58, 59

31, on the thermo-electric behavior and resistance of soft steel..
32, on the thermo-electric behavior and resistance of soft iron.
33, on the observed and calculated specific resistance of steel...
34, comparison of the values of thermo-electric hardness and specific
resistance of steel...

8353

60

61

63

66

35, on the thermo-electric behavior of silver-platinum alloys....
36, 37, on the thermo-electric behavior of silver-gold alloys....
38, on the thermo-electric behavior of silver-copper alloys..
39, on the thermo-electric behavior of silver-zinc alloys
40, on the electrical resistance of certain alloys of silver.....
41, on the electrical resistance and temperature-coefficient of alloys of
silver ....

42, on the thermo-electric behavior of malleable cast-iron ............

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Page

Table 43, on the electrical resistance of malleable cast-iron ...

44, on the thermo-electric power and specific resistance of malleable
cast-iron....

45, 46, on the thermo-electric effect of magnetization of iron............
47, 48, on the temper and electrical resistance of annealed steel
49, constants (dimensions, density, mass) of magnets................
50, dimensions, magnetic moment, specific magnetism, specific resist-
ance, and temper of permanently saturated steel rods...
51, constants (dimensions, density, mass) of magnets...
52, data for the observed homogeneity of the steel wires used

102

102

108, 109
124

125

126-128

129

130

53, dimensions, magnetic moment, specific magnetism, specific resist-
ance, and temper of permanently saturated steel rods.....
54, 55, 56, 57, 58, 59, 60, 61, 62, 63, dimensions, specific magnetism, spe-
cific resistance, and temper of permanently saturated steel rods, di-
gest......

130-135

... 136, 137, 138, 140

64, 65, oxide-color (temper), dimensions, permanent magnetizability of
steel

142

66, Ruths's magnetic results....

146

67, maxima of permanent magnetizability for 100°.

154

68, temper, resistance, magnetization, and magnetizability of steel in
case of continued annealing at 100°.

155

69, 70, magnetizability of steel successively annealed at 100°

157

71, 72, temper, resistance, magnetization, and magnetizability of steel
in case of continued annealing at 100°.

161

73, 74, magnetizability and dimensions of steel rods thoroughly an-
nealed at 100c

163

75, simultaneous variations of magnetization and galvanic resistance
in case of continued annealing

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82, general electrical characteristics of the iron-carburets.....

185

I, thermo-electric hardness (T. E. H.) and temperature of ignition of
steel.......

211

II, III, thermo-electric behavior (T. E. H.) of steel (older results).....
IV, V, VII, electrical resistance of steel (older results)......
VI, VII, thermo-electric hardness (T. E. H.) and resistence of steel (older
results)......

212, 213

215

215, 216

IX, density and thermo-electric hardness (T. E. H.) of steel

Tait on anomalous behavior of iron..

Thermo-electric investigations of

Temperature of ignition, Effect of, on hardness..
Temperature-coefficient, a volume-function....

for iron-carburets, Single series of..
for iron-carburets, Summary of
Measurement of, for cast-iron..
Measurement of, for steel.
of iron, earlier results...

[blocks in formation]
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