544 INDEX. 



Paoe. 



Clausius, opinion of, as to the nature of ozone 167 



Climate and productiveness, conditions of 11 



Climate influenced by astronomical conditions 39, 40 



Climate influenced by ocean currents 285 



Climate modified by geological conditions 18 



Climate modified by physical geography 63 



Climate modified by prevailing winds 16 



Climate modified by topography and by proximity of ocean 13 



Cloud condensation increasing intensity of electrical charge by 



diminished surface 360 



Cloud giving secondary discharge from one portion to another 393 



Cloud particles, extreme minuteness of, the cause of their apparent 



suspension in the air 247 



Clouds, classification of, by Howard, noticed 248 



Clouds, inductive eflTects from 368, 369 



Clouds, the height of, estimated by the lowness of the dew-point_- 265 

 Coal-beds reservoirs of power derived from the sun in primeval 



growth 124 



Coast-lines, influence of, on winds and ocean currents 64 



Coffin, Prof. James H., demonstration by, of three belts of northern 



aerial currents 55, 81 



Coffin, Prof. James H., illustrations by, of winds in the United 



States 77, 80 



Coffin Prof. James H., investigation by, of the winds of the globe 280 

 Coffin, Prof. James H., paper by, on winds of northern hemisphere 



referred to 16 



Color ineffective on the absorption or radiation of dark heat 192, 193 



Colza or rape-seed oil, employed for light-house illumination 477 



Conduction of electricity, varying with different substances 319 



Conductor, matter from, transferred in every electric discharge 336 



Conductor, the length of, increasing the intensity of electric dis- 

 charge at its end 380, 331 



Conductor well connected with earth, giving off lateral discharge. 340, 341 



Congress, U. S., urged to establish a metorological system 454 



Constitution of matter, consideration of 8& 



Correlation of the physical forces entirely independent of vitality 117 



Crystallization, illustrations of, by M. Gaudin 108 



Crystallization, some characteristics of 197 



Crystallized compounds compatible only with community of crys- 

 talline form 109 



Currents of the Pacific and Atlantic oceans illustrated 284 



Dalton, application by, of Boyle and Mariotte's law to mixed gases 157 



Dalton, atomic theory developed by 91 



Dalton, determination by, of the amount of salt in rain-water 166 



Dalton, experiments by, on mingling air and vapor 227 



