Mr. A. A. Hayes on the Alabama Meteoric Iron. 155 



scales produced turbidness, while the color of the solution had 

 become greenish blue. 



The weight of the iron or positive electrode before immersion 

 was 101-50. After the action was stopped, it was washed and 

 dried over sulphuric acid ; the weight was 65-82, it having lost 

 35-68. The platina electrode weighed 52-76, and after it had 

 been dried, with its brilliant coating of copper, 88-76; or an ad- 

 dition of 36-00 had been gained. After carefully drying the 

 scales and plates of metal which had fallen, 6-49 were obtained. 

 From 35-68 deducting 6-49, the numbers 29-19 represent the 

 weight of metal and alloy which in this solution caused the de- 

 position of 36-00 of copper. Taking the determination of Ber- 

 zelius, 30-86 of pure iron would have been required in a neutral 

 solution ; I shall hereafter allude to the peculiarity of this action. 

 The positive part of the alloy dissolved, contained — 



Iron, 34-012 



Nickel, 1-274 



Chlorine, -394 



35-680 

 While in the negative, or undissolved alloy, the metals have the 

 following relation — 



Iron, 3-674 



Nickel, 2-483 



Bisulphuret of iron, .... 0-333 



6-490 



Reduced to per centum proportions — 



riron, 



Alloy dissolved. 



Alloy separated, 



77-137 

 3-570 

 1-104 



10-297 

 6-959 



81-811 j Nickel, 

 [Chlorine, 

 riron, 

 18-189 j Nickel, 



[Bisulphuret of iron, 0-933 

 Another slip from the interior of a mass was wholly decom- 

 posed ; 29-64 grains dissolved, caused the precipitation of 36-42 

 grs. of copper. The negative alloy, weighing 6-78, contained — 



Iron, 3-694 



Nickel, . . . . . . 2-774 



Bisulphuret of iron, . . . . -312 



