I
Inductive action of accelerated
masses, [108]
Inert and gravitational mass, equality
of, [60]
Invariant, [9] et seq.
Isotropy of space, [17]
K
Kaluza, [104]
L
Levi-Civita, [73]
Light-cone, [41]
Light ray, path of, [98]
Light-time, [33]
Linear orthogonal
transformation, [7]
Lorentz electromotive force, [44]
—transformation, [31]
M
Mach, [59], [105], [106], [109], [114]
Mass and Energy, [45], [49]
—equality of gravitational and
inert, [60]
—gravitational, [60]
Maxwell's equations, [23]
Mercury, perihelion of, [99], [103]
Michelson and Morley, [28]
Minkowski, [32]
Motion of particle, equations of, [50]
Moving measuring rods and
clocks, [38]
Multiplication of tensors, [14]
N
Newtonian gravitation
constant, [95]