Constitution of Bebeerine. 255 



(2.) 0-6250 salt gave 0-1200 platinum = 19-28 per cent. 



(3.) 0-5335 gave O'lOSO platinum = 20*20 per cent. 



The platinum salt was burned with chromate of lead. 



0-4005 salt gave 0-152 water and 0-6232 carbonic acid. 



For nitrogen. — 0-430 salt gave 0*177 ammonio-chloride of 

 platinum. 



Chlorine was estimated by heating with lime, dissolving in 

 nitric acid, and precipitating by nitrate of silver. 



0-420 salt gave 0-3730 chloride of silver. 



These numbers lead to the following formulae: — 



100-00 6255-17 99-99 



The atomic weight calculated from the quantity of platinum 

 found, is — 

 I. 6476'0 

 II. 6423-4 



' ^ r mean found atomic weight of pla- 



18991-6 = 6330-2| ti^^^ g^lt. 



Referring to our previous numbers, we find — 



3681-38 100-00 lOO'OO 



On comparing these calculated and found numbers, they 

 will be seen to agree, and on subtracting the weight of one 

 atom of chloride of platinum and hydrochloric acid from the 

 atomic weight of the platinum salt of bebeerine, we find 



