INDEX TO VOL. I. 



Absorption, Electric, 573 

 Ampere, 193 



Beam : bent into a circular ring, 55 57, 65 

 Bending, Lines of, 87, 97, 105, 106, 107, 108 

 Brewster, Sir David, 43, 63, 68, 263, 413 



Cauchy, 32, 40, 71 



Challis, 453, 503, 505 



Clapeyron, 30, 32, 70, 72 



Clausius, 377, 386, 387, 405 



Coil, Coefficient of induction of, 592597 



Colour-blindness, 119, 137, 441 



Colour box, 420 ; Method of observation, 426 



Coloured beams of light, Mixtures of, 143 147 



Coloured discs, 128, 264, 265 



Coloured powders, 142 



Colour equations, 128, 129, 138141, 148, 268270, 

 427, 428, 442 



Colour: Experiments on, 126, 263; Law of Per- 

 ception of, 130; Theory of the Perception of, 

 135 



Colours : History of, 411 ; Mathematical theory of 

 Newton's diagram of, 416 ; Method of repre- 

 senting them by straight lines, 418 ; Theory of 

 Compound, 149, 243, 410; Three primary, 

 Theory of, 445 



Colour sensations, Relations of to the pure rays of 

 the spectrum, 150 



Colour top, 127, 147 



Colour triangle, 121, 131135, 268, 416 



Compression, Equations of, 36 



Condenser, Capacity of, 572 ; Theory of, 572576 



Contact, Conic of, 93, 94, 102 



Cotes, 271 



Coulomb, 33, 71 



Current Electricity, Conduction of, 180 



Currents: Action enclosed, 183; Intrinsic energy 

 of, 541; Mutual action between, 537; Produced 

 by induction, 185 ; Quantity and Intensity as 

 properties of, 189 



Curvature, entire and specific, 89, 92 



Cylinder : acted on by centrifugal force, 60 ; hollow, 

 exposed to pressure, 45 50 ; hollow, dilated 

 by heat, 62; of parallel wires twisted, 59; 

 twisted, 42, 43, 44, 66 



D'Alembert, 248 



Diagrams, Conditions of indeterminateness in draw- 

 ing reciprocal diagrams, 516; of Force, 514 

 Dielectrics, Theory of, 177 

 Dynamometer, Weber's, 546 



Earth's motion, 259 



Elastic bodies, Collisions of, 405 



Elasticity : Axioms, 31 ; Equations of, 38 ; Co- 

 efficients of, 41 



Elastic solids : Equilibrium of, 30 ; Pressures in the 

 interior of, determined by the action on polar- 

 ized light, 68 



Electric absorption, 573 



Electrical images, 209 



Electromagnet, Effect of the core, 222 



Electromagnetic disturbances, Propagation of, 578, 

 583 



Electromagnetic Field : Dynamical theory of, 526 ; 

 General equations of, 534, 551552, 554564; 

 Mechanical actions in, 565 570 



Electromagnetic Induction, 536 ; Calculation of 

 coefficients, 589 



