VIII CONTENTS. 



PAGE. 



THE FORMATION OF ALCOHOLATES BY CERTAIN SALTS IN SOLUTION IN METHYL AND 



ETHYL ALCOHOLS WORK OF MCMASTER Continued. 



THE BEARING OF HYDRATES ON THE TEMPERATURE COEFFICIENTS OF CONDUC- 

 TIVITY OF AQUEOUS SOLUTIONS 153 



SPECTROSCOPIC INVESTIGATIONS WORK OF UHLER 160 



AQUEOUS SOLUTIONS 161 



The Spectrograph 169 



The Spectroscope 170 



The Cells 171 



Freezing-point Apparatus 177 



Conductivity Apparatus 177 



Photographic Material 178 



Sources of Light 179 



Exposures and Spectrograms 180 



Plates 182 



Wave-lengths of Reference Lines 185 



Experimental Facts and Data 186 



Solutions 186 



Cobalt Chloride 187 



Cupric Chloride 190 



Cupric Bromide 1 92 



Cobalt Chloride and Calcium Chloride 194 



Cobalt Chloride and Calcium Bromide 200 



Cobalt Chloride and Aluminium Chloride 205 



Copper Chloride and Calcium Chloride 213 



Copper Chloride and Calcium Bromide 215 



Copper Chloride and Aluminium Chloride 221 



Copper Bromide and Calcium Chloride 224 



Copper Bromide and Calcium Bromide 226 



Copper Bromide and Aluminium Chloride 230 



General Summary of Results 232 



Discussion of the Several Theories 232 



NON-AQUEOUS SOLUTIONS 241 



Apparatus 241 



Solutions 244 



Cobalt Chloride in Methyl Alcohol 244 



Cobalt Chloride in Ethyl Alcohol 245 



Cobalt Chloride in Acetone 247 



Copper Chloride in Methyl Alcohol 251 



Copper Chloride in Ethyl Alcohol 252 



Copper Chloride in Acetone 253 



Copper Bromide in Methyl Alcohol 255 



Copper Bromide in Ethyl Alcohol 256 



CONCLUSIONS 259 



REFERENCES TO PAPERS ALREADY PUBLISHED ON THIS SAME SUBJECT 260 



INDEX .. 261 



