B. TV. Bull on Emulsine and its Composition. 83 



II. *5115 grm. as above, corresponding to -5034 grin., gave 

 with soda-lime 1*266 grm. chlorid of platinum and ammonium. 



III. -4125 grm. ditto, corresponding to '406 grm., gave 10S3 

 grm. chlorid of platinum and ammonium. 



IV. 14428 grm. ditto, corresponding to 1-4199 grm. fused 

 with potassa and saltpetre, gave with chlorid of barium *058 

 grm. sulphate of baryta. 



The precipitate treated with hydrochloric acid, again ignited 

 and weighed, gave the above result at the second weighing. 



V. 2-156 grm. as above, equal to 2*1216 grm.. gave with a 

 similar treatment, sulphate of baryta '086 grm. at the second 

 weighing. 



From the above the following results are calculated : 



C - - 51020 - - . ' . 



H - - 6-870 - . . 



N - - 15-800 - - 16750 



- - 25-744 - . . 



1 - - -566 - - -565 



100 000 



The proportion of nitrogen to carbon is as one to seven and a 

 half. The per centage of carbon and hydrogen is very nearly 

 that of the legumin from almonds of M. Dumas, but the per 

 centage of nitrogen is smaller, and its reaction with acetic acid is 

 quite different from that ascribed to this latter substance. 



A portion of fresh almond powder was macerated with ordin- 

 ary alcohol at a moderate temperature, the filtrate evaporated 

 to dryness in a water bath and treated with distilled water. A 

 part consisting principally of oily matter remained behind, while 

 the filtrate possessed a sweet taste, and with Trommer's copper 

 test gave indications of the presence of sugar. From the reduc- 

 tion of the copper, which took place at the ordinary temperature 

 Within twenty-four hours, the inference was drawn that this sub- 

 stance was present in the form of grape sugar. 



With a view of examining the free acid formed during the 

 fermentation, an emulsion prepared as above mentioned, was ex- 

 posed to a temperature of about 30° a number of days. The sepa- 

 ration of the coagulum ensued, which was separated from the 

 liquid by decantation, and the remainder exposed to the continued 

 action of the air arid heat. The watery fluid became more acid 

 each day till after standing five or six days, when it began to ac- 

 quire a disagreeable odor, became turbid, and a white pellicle 

 covered the surface. As the acid reaction at this stage appeared 

 to diminish, the whole was then submitted to distillation. An 

 aromatic liquor came over resembling very much in odor that of 

 rose water, and containing a small amount of alcohol, but not 



