530 



Mr. G. Gore on 



tinum positive 26° at 200° F., and increased to 50° by long-continued 

 heat. The needles returned to zero on cooling. (Compare No. 70.) 



No. 122. The acidulated solution of cupric acetate of No. 51. Cold 

 platinum faintly positive at 200 F. (Compare No. 51.) 



No. 123. The aqueous solution of chloride of chromium of Nos. 30 

 and 31. Cold platinum positive 48°. Needles returned to zero on 

 cooling. (Compare No. 31.) 



No. 124. The acidulated solution of acid chromate of potassium of 

 No. 36. Cold platinum positive 32°. (Compare No. 36.) 



No. 125. The acidulated solution of cupric chloride of Nos. 16 and 

 17. Cold platinum positive 52° at 200° F., and increased to 56° by 

 continued heat. (Compare No. 17.) 



No. 126. The aqueous solution of cupric chlorate of No. 19. Cold 

 platinum positive 26°. (Compare No. 19.) 



No. 127. The acidulated solution of blue vitriol of Nos. 42, 43, and 

 44. Cold platinum positive 42°. (Compare No. 43.) 



No. 128. The solution of acid sulphate of potassium of No. 47. Cold 

 platinum feebly positive 4° at 200° F., and decreased by continued 

 heat. (Compare No. 48.) 



No. 129. The solution of chloride of chromium in alcohol of No. 56. 

 Hot platinum positive 1J° when the alcohol began to boil. (Compare 

 No. 56.) 



No. 130. The solution of chloride of potassium of No. 65. Cold 

 platinum positive 20° at about 180° F., and declined to 14 at 200° F. 

 (Compare No. 66.) 



No. 131. The saturated solution of potassic iodate of No. 83. Cold 

 platinum positive 5° at 200° F., and increased to 14 by continued heat. 

 (Compare No. 84.) 



No. 132. The solution of iodide of potassium of No. 98. Hot pla- 

 tinum positive 23°, and increased to 37° by long continued heat. 

 (Compare No. 99.) 



No. 133. The solution of phosphate of sodium of No. 93. Hot pla- 

 tinum positive 5° at 200° F. by continued heat. (Compare No. 93.) 



No. 134. The solution of borax of No. 101. Hot platinum posi- 

 tive 3° at 200° F. (Compare No. 101.) 



No. 135. The solution of hyposulphite of sodium of No. 89. Hot 

 platinum positive about 20° at 200° F., and increased to 38 by con- 

 tinued heat. (Compare No. 89.) 



No. 136. The solution of ammonia alum of No. 96. Hot platinum 

 feebly positive If at 200° F. by continued heat. (Compare No. 96.) 



No. 137. The solution of potassic bromide of No. 100. Hot platinum 

 positive 7^° at 200° F. by continued heat. Compare No. 100.) 



No. 138. The acidulated solution of cupric nitrate of No. 25. Cold 

 platinum positive 40° at 190° F., and increased to 44° at 200° F. by 

 continued heat. (Compare No. 25.) 



