ELISHA MITCHELL SCIENTIFIC SOCIETY. 93 



ment was treated withbenzen. ether, petroleum ether and 

 chloroform, but none of these had any appreciable sol- 

 vent action. It was then dissolved in water, a portion 

 of the solution evaporated to dryness in a platinum 

 dish, dried to constant wei^'ht, and then i^rnited at a 

 low red heat. 



Weight of dish and substance, - - 24.9115 gr. 

 AVeio-ht of dish, ------- 23.8732 



Weicfht of substance taken, - - 1.0383 



'^^ 



Weio-ht of ash and dish, - - 24.1276 ^r. 



Weio-ht of dish, . - . - 23.8732 



. Weig-ht of ash, - - - - 2644 



To ash, 34.50 per cent. 



This was recog"nized as sodium carbonate, and is 

 equivalent to 10.63 per cent sodium. 



The percentag^e of sodium calculated for sodium g"lu- 

 cosate is 11.37 per cent.; found in this syrup 10.63 per 

 cent. Hence it must be a modification of gflucosate. 



In conclusion it is hardh^ necessary to say that the 

 neg"ative results of the above experiments do not prove 

 the impractibility of the reaction proposed. It remains, 

 however, to find some neutral anhydrous medium in 

 which sodium g-lucosate is soluble and b}^ which it is 

 not decomposed, as in most chemical reactions of this 

 character the reacting- bodies must be either liquid or 

 in solution. 



