INDEX. 



Centres of curvature of lens, 313 



of miiTor, 303 



Chain-pile ( Pulvermacher), 153 



Chauveau, 229 



Chevalier's camera lucida, 372 



Chlorophyll, Fluorescence of, 337 



Christiaiii's compensator, 140 



Chromatic aberration, 34 1 



Chronograph (Marey's), 174 



Circuit, Accessory, 56 



, Divided, 32 



, Primary, 35 



, Secondary, 35 



, Short, 56 



Circular polarisation, 411 



Circulation of the blood, 194 



, Mechanics of, 222 



Clausius, 451 



Clay guard, 113 



Cloetta, 256 



Closing cushion, 115 



Coefficient of absorption or solu- 

 bility of a gas, 291* 



of conductivity, 457 



of expansion, 465 



of friction in gaseous diffu- 

 sion, 290 



Coercive force, 9"2 



Cohesion, 188, 239 



Coils, Induction, 34 



, , Du Bois-Reymond's, 42 



, , for medical purposes,- 



141 



Ruhmkorffs, 39 



Collimator, 524 

 Colloids, 258 

 Colour, 339 



sensation, Youug-Helmholtz' 



theory, 343 



-top, Maxwell's, 341 



342 



Colours, Complementary, 



, Compound, 341 



, Fundamental, 312 



, Intensity of, 344 

 , Mixture of, 340 

 - of spectrum, 319 



, Primary, 342 



, Saturation of, 344 



, Secondary, 342 



, Toue of, 344 



Coloured rings of Newton, 408 



Communicating vessels, Equili- 

 brium of liquids in, 193 



Commutator, 59 



Compensation of muscle current, 

 120 



Compensator, Long, 121 



, Round (Du Bois-Reymoud), 



124 



Compensator, Round, Modified 



by Christiani, 140 

 Compound microscope, 358, 363 



waves, 435 



Compressibility of gas, 271, 272 



- of liquids, 188 

 Concave lenses, 318 



meniscus, 241 



mirrors, 303 et seq. 

 Condensation,' Wave of, in sound, 



418 

 Condenser, Abbe's, 8o4 



, Electric, 11 



Conduction of heat, 456 

 Conductors of electricity, 4 



of heat, 457 



Conjugate foci, 304, 314, 315 

 Constant current, 64 



elements, 18 



Contact breaker, Foucault's, 40 



key,- 55 



Contraction, Muscular, 65 



, , Curve of, 136 



, , Law of, 87 et seq. 



-, , Secondary, 72 



, , Tetanic, 67 



Convection of heat, 458 

 Converging lens, 313 

 Convex lenses, 313, 316 



meniscus, 242 



mirrors, 305 et seq. 



Corpuscular theory of light, 296 

 Couple, Dynamical, 494 



, Voltaic, 16 



Crico-thyroid muscles, 448 



Critical angle, 310 



Crystalloids, 258 



Cuneus, 12 



Cupping instruments, 287 



Curare.P'reparation of solution of, 



for experiment, 75 

 Current electricity, 13 et seq. 



-, Action of on magnets, 



94 



by, 53 



Extra, 43 



Effects of, 50 et seq. 

 Production of magnets 



from muscle, 117 



from nerve, 119 



Rapidity of; 129 



Induced, 3436 

 Interrupted, 64 



142 



, Thermo-electric, 

 Curve of fatigue, 179 

 of muscular contraction, 



176 



Cylinder, Revolving, 171 

 Czermak, 349 



