56 



W. G. Mixter — On Electrosynthesis. 



the hydrogen- oxygen mixture 11*2 CC (reduced to 0° and 760 mm ). 

 The light in the oxygen was much feebler than in oxygen and 

 hydrogen. The current was next passed through the oxygen 

 only for two hours and the contraction was 2*2 CC . 



Carbonic Oxide and Oxygen. 



The carbonic oxide used was made by heating a mixture of 

 formic acid and oil of vitriol. Two measures of the gas were 

 mixed over water with one measure of oxygen from pure 

 potassium chlorate. The mixed gases left after exploding and 

 treating with potassium hydroxide less than 1 per cent of gas. 

 The following table contains the observations and results of 

 four experiments. 





Hydrogen, 



2 volumes. 





Carbonic 



oxide, 2 



volumes. 





• Oxygen, 



1 " 







Oxygen, 



1 



" 













c.c.of 



c. c. of 















Pres- 



Observed 



Reduced 



gas 



gas 



Reduced 



Observed 



Pres- 





Hours. 



Temp. 



sure. 



volume. 



volume. 



com- 

 bined. 



com- 

 bined 



volume. 



volume. 



sure. 



Temp. 





L6 



180*5 



144-9 



32-5 







33-2 



148-1 



180-5 



16 



2 



14-5 



147-5 



140-7 



25-9 



6'6 



7-9 



25-3 



144-4 



140 



14-5 





15-8 



179-8 



140 



31-3 







333 



145 



184-7 



15-8 



5 



16-6 



69-5 



1243 



10-7 



20'6 



211 



12-2 



128 



77-5 



16-2 





15-9 



186 



148-7 



34-4 







32 



144-5 



178-1 



16-2 



5 



18 



94 



135 9 



15-8 



186 



1 



22-3 



9-7 



121-3 



65 



18-3 





17 



1-5 



121 3 



0-2 







0-5 



118 



35 



17 





16-4 



188 



150 



35 







392 



1496 



211 



16-4 



2 



16 



153 



147-3 



28 



7 



8'4 



30-8 



146 



170 



16-5 



2 



14-7 



117-8 



140-8 



20-7 



7-3 



92 



21-6 



1384 



124-8 



14-7 



2 



15-8 



82-6 



135 



13-9 



6-8 



7*2 



14-4 



132 



876 



15-6 



2 



16 



28-2 



125 



4-4 



9*5 

 306 



10*2 



4-2 



122-7 



27-2 



16 





35 







20 



3-2 



122-4 



0-5 







0-6 



119 



4-2 



18 



In the last experiment the air in the eudiometers, 0*2 and 

 0*5 CC , was noted before filling with the gases, and also the 

 residual gas, 0*5 and 0'6 CC , when the electric discharge gave no 

 further rise of the mercury in the tubes. The hydrogen-oxy- 

 gen mixture was in one eudiometer in the first and third 

 experiments and in the other eudiometer in the second and 

 fourth ; that is, the arrangement and filling of the apparatus 

 was reversed each time after the first experiment. In all T6*4: cc 

 of hydrogen and oxygen and 86*3 CC of carbonic oxide and 

 oxygen combined, a ratio of 1 to 1*13. 



Gloio Discharge in dry Carbonic Oxide and Oxygen, 

 The eudiometers were filled with a mixture of two volumes 

 of carbonic oxide and one volume of oxygen, the same mixture 



