328 



Mr. G. Gore on the Thermo-electric 



[Feb. 23, 



No. 



1. 

 2. 



Chloride of Cobalt. 



Ounces diluted 



tO 12 OZ8. 



oz. saturated solution 



3 ozs. 



Value of 

 Deflection. 



( Hot copper positive. L*- 

 •1247 J quid acid. No stains, ex~ 

 1-2726 ] cept slightly at edge of hot 

 ( liquid. 



No. 

 1. 

 2. 



No. 

 1. 



2. 



Grains diluted 



to 12 ozs. 

 , . 200 

 . 800 



Grains diluted 



to 12 ozs. 

 . 100 



1000 



Protosulphate of Iron. 



Value of 

 Deflection. 



.... -0198 Hot copper negative. 



.... '0794 No stains on either plate. 



Chloride of Manganese. 



Value of 

 Deflection. 



•0436 ^ C0 PP er P os itive. No 



) stains. 



t Liquid neutral, or very 



1-0995 



faintly acid. 



Chromic Acid. 



Value of 



Ounces of strong solution Deflection. 

 No. diluted to 12 ozs. i Hot copper positive. Both 



1 \ .... -0987 J plates much acted upon, ap- 



2 2 .... 18-8034 1 parently the cold one the 



( most. 



Chloride of Chromium. 



Value of 



Ounces of strong solution Deflection. 

 No. diluted to 10 ozs. [ Hot copper positive. The 



1 \ .... -0293 J plates appeared unaffected. 



2 1 .... -1319 1 The solution was weakly 



acid to test-paper. 



Nitrate of Lead. 



Value of 



No. Grains. Deflection. 



1 100 diluted to 12 ozs. -0009 \ , ? ot P late ^ive. No 



) stains. 



2 Saturated solution (undiluted) -0259 | ac ^ uid extremel * faintl ? 



Sulphate of Zinc. 



Grains diluted Value of 



No. to 20 ozs. Deflection. 



1 287 .... '0080 Hot copper negative. { Liquid 



2 574 -0048 „ positive, j neutral. 



