1863.] 499 



which, recrystallized from dilute hydrochloric acid, gave the following 

 analytical result: 



411 gramme gave *1075 gramme metallic platinum ; this corre- 

 sponds to 26-16 per cent. C 40 H^ N 2 O 4 , 2 H Cl -f 2 Pt C1 2 requires 

 26-81 per cent. 



The Tartrate of Strychnine and Antimony, 



was likewise prepared by adding strychnine to a boiling solution of 

 tartar-emetic. The same solution of the alkaloid and precipitation 

 of oxide of antimony were observed as in the case of qumidine. On 

 cooling, the double tartrate was deposited in very brittle needles, much 

 less soluble in water than the corresponding quinidine-salt. It occa- 

 sionally crystallizes in leafy plates. 



The following results were obtained in the analysis of the salt 

 dried at 100: 



I. *3365 gramme gave -6005 gramme carbonic acid and '133 

 gramme water. 



II. '6000 gramme gave *148 gramme SbO 4 . 



III. '5495 gramme gave *1375 gramme SbO 4 . 



Theory. 



II. III. 



19-47 19-76 



100-00 

 This corresponds with the formula 



C 42 H 22 N 2 4 Hj c H Q 



Sb O 2 J 8 4 12* 



Some of this salt was also decomposed by sulphuretted hydrogen 

 and treated in the manner described in the case of the quinidine. It 

 was then obtained in quadrilateral prisms with pyramidal summits, 

 and gave the usual reactions with sulphuric acid and bichromate of 

 potassa. 



A platinum-salt of the recovered alkaloid was also prepared and 



