CONTENTS. 



PAOE. 



Introduction 1-10 



Work of C. M. Stine 11-56 



Conductivity Calculations 11 



Experimental Work 13 



Conductivity 13 



Calcium Chloride 14 



Potassium Chloride 16 



Mixture of Calcium Chloride and Potassium Chloride 17 



Lowering due to Hydration 18 



Calcium Chloride. 20 



Magnesium Chloride 23 



Mixture of Calcium Chloride and Magnesium Chloride 23 



Strontium Chloride 29 



Mixture of Calcium Chloride and Strontium Chloride 30 



Magnesium Nitrate and Strontium Nitrate 34 



Sodium Bromide and Lithium Bromide 38 



Calcium Nitrate and Magnesium Nitrate 42 



Ferric Chloride and Aluminium Chloride 46 



Calcium Nitrate and Calcium Chloride 50 



Effect of Change in Temperature on the Conductivities of Separate Solutions of Elec- 

 trolytes and on Mixtures of these Electrolytes 53-55 



Summary 56 



Work of J. N. Pearce 57-88 



Introduction 57 



Object of the Investigation 58 



Experimental 59 



Conductivity 59 



Specific Gravity 60 



Solutions and Solvent 60 



Calculation of the Composition of the Hydrates 60 



Calcium Chloride 61 



Strontium Chloride 63 



Magnesium Chloride 64 



Barium Chloride 64 



Calcium Nitrate 66 



Strontium Nitrate 68 



Magnesium Nitrate 68 



Barium Nitrate 69 



Hj-drates of Barium Bromide and Barium Iodide 70 



Cobalt Chloride 70 



Cobalt Nitrate 72 



Copper Chloride 73 



Copper Nitrate 74 



Nickel Nitrate 74 



Aluminium Chloride 77 



Sodium Bromide 7S 



Hydrochloric Acid 80 



Nitric Acid SI 



Sulphuric Acid 81 



Discussion 82 



Summary 87 



Work of H. R. Kreider 89-109 



Experimental 89 



Apparatus 89 



Salts 90 



Solvents 90 



Solutions 91 



Discussion of Results 95 



Binary Electrolytes and Ternary Electrolytes 101 



Summary 104 



