Acceleration; value of g; seconds' pendulum, § 23.
Force; the dyne; gravitation measure of force, §§ 24-26.
The poundal, § 27. Work and energy; the erg, § 28.
Kinetic energy, § 29. Gravitation-measure of work, § 30.
Rate of working; horse-power, § 31. Examples in dyna-
mics, p. 25. Centrifugal force, § 32. Examples on centri-
fugal force, p. 27.
Relative density of water at various temperatures, §
33. Absolute density of water, § 34. Formulæ for ex-
pansion of water, § 35. Table of densities of solids and
liquids, § 36. Volume by weighing in water, § 37.
Examples in hydrostatics, p. 33. Barometric pressure;
C.G.S. unit of pressure; standard atmosphere adopted in
this volume, § 38. Examples on barometric pressure, p.
35. Density of dry air, with example, § 39. Absolute
densities of gases, § 40. Pressure-height at a point in the
air (height of homogeneous atmosphere) §§ 41, 42. Exam-
ples on pressure-height, p. 39. Variation of density with
height in the atmosphere, § 43.
which density is halved, p. 41.
vapour, § 44. Pressures of various vapours, § 45. Super-
ficial tensions of liquids, § 46. Correction of barometer
for capillarity, § 46 A.
Examples on height at
Pressure of aqueous
STRAIN, STRESS, AND RESILIENCE, .
Strain, SS 47-49. Stress, $$ 50, 51. Coefficients of
resilience, § 52. Resilience of volume; Young's modulus;
simple rigidity, § 53. Shear, $$ 54-58. Shearing stress,
$$ 59-60. Resistance to shearing, § 61. Resilience of
volume of liquids, SS 62, 63. Resilience of solids, §§
64-69.
Velocity, § 85. Wave-lengths, § 86. Index of refrac-
tion of air, § 87. Vibrations per second, § 88.
refraction; glass, § 89.
double refraction, § 92.
laneous substances, § 93.
gases, $$ 95, 96.
Liquids, §§ 90, 91. Indices of
Indices of refraction of miscel-
Gases, § 94. Dispersion in
Unit of heat, §§ 97-99. Capacity and specific heat, §§
98-102. Table of specific heats and atomic weights of
elements, § 103. Variation of specific heat with tempera-
ture, § 104. Specific heats in solid and liquid form, § 105.
Specific heats of gases, §§ 106, 107. Of vapours, § 108.
Melting points, § 109. Change of volume from liquid to
vapour, § 110. Latent heats of fluidity, and melting points,
§ III.
Latent heats of vaporization, § 112. Latent and
total heat of steam, § 113. Effect of temperature on
gases, § 114. Boiling points of water, § 115. Departures
from Boyle's law, § 116. Specific heats of the same
substances in different states, § 117. Boiling points of
various liquids, § 118. Change of volume in melting, § 119.
Dry-bulb, wet-bulb, and dew-point, § 120.
Conductivity; definition, § 121. Dimensions, § 122.
of certain gases, § 126. Conductivity of air, § 127. Results
of experiments on conductivity of solids, §§ 128-135.
J. D. Forbes, § 128. Neumann, § 129.
Results from
underground thermometers, § 130. Angström, § 131. G.
Forbes, § 132. A. S. Herschel and Lebour, § 133. Péclet
$$ 134, 135.
Emission and surface-conduction, M'Farlane, § 136.
Tait, § 137.
Mechanical equivalent of heat, §§ 138, 139.
Heat and energy of combination, § 140.
Two specific heats of a gas, § 141. Change of freezing-
point with pressure, § 142. Change of temperature pro-
duced by adiabatic compression, § 143. Resilience as
affected by heat of compression, with examples, § 144.
Tables of expansions, $ 145.
Magnetic units and their dimensions, $3 146-150.
Examples, pp. 122-125. Gauss's pound magnet, p. 122.
Maximum of permanent magnetism, p. 123. Maximum
magnetization of iron, nickel, and cobalt, p. 123. Moment
and magnetization of earth, p. 124. Different units em-
ployed by Gauss, p. 125. Distribution of magnetic potential
and force over surface of earth, § 151. Magnetic ele-
ments at Greenwich, §§ 152, 152*. Magneto-optic rota-
tions, $153.
Specific inductive capacity, § 171. Of gases, § 172.
Ohm, theoretical and practical, § 173. Volt, Weber, and
Farad, § 174. Earth-quadrant per second, § 175.
Length of spark for various differences of potential,
§§ 176, 177.
Resistance, and specific resistance, § 178. Tables of
specific resistance, §§ 179, 180. Resistance of insulators,
$181. Resistance of water and ice at various tempera-
tures, § 182.
Electro-motive forces of various cells, § 183. Electro-
motive forces of contact, § 184. Thermoelectric force,
with examples, § 185, 186. Electro-chemical equivalents,
§ 187. Computation of electromotive force from heat
of combination, § 188. Examples on electricity, § 189,
pp. 155-158. Capacity of earth, p. 156. Electromotive
force due to revolving coil, p. 158. Problem on selection of
fundamental units, § 190.
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