572 PROFESSOR ANDERSON ON THE PRODUCTS OF THE 



When the base was treated with iodide of amyle in a sealed tube, it rapidly 

 dissolved ; and, on cooling, the fluid became filled with fine crystalline plates. 

 These crystals, when treated with potash, evolved a smell quite distinct from 

 that of amylamine, much more pleasant, and devoid of that putrid odour which 

 distinguishes the whole of the alcohol amide bases. When a quantity of the iodide 

 was introduced into a retort, with an excess of potash, and distilled into a mo- 

 derately dilute solution of hydrochloric acid, a salt immediately deposited itself 

 as a crystalline powder of sparing solubility, and possessing all the characters of 

 the hydrochlorate of diamylamine. Analysis gave the following results : — 





C 6-400 grains dried at 212° gave 









V 14*505 grains of carbonic acid and 









{ 7'280 grains water. 











f 8-240 grains dried at 212° gave 









\ 6*165 grains of chloride of silver. 









Experiment. 



61-80 





Calculation. 





Carbon, 



62-10 



^20 



120- 



Hydrogen, 



12-63 



12-40 



H 24 



24- 



Nitrogen, 



• ... 



716 



N 



14- 



Chlorine, 



18-50 



18-34 



CI 



35-5 



100-00 193-5 



These experiments prove incontestably that the base is amylamine, and they 

 afford an indirect refutation of the opinion expressed by some chemists, that the 

 substance described in a previous part of this paper as propylamine, might pos- 

 sibly be trimethylamine. The occurrence of the whole series of the alcohol bases, 

 with their proper boiling points, as well as many facts observed during the inves- 

 tigation, had fully convinced me of the accuracy of my original opinion ; but the 

 experiments now detailed, showing that one of them is really an amide base, may 

 be taken as affording the strongest possible evidence that the others are similarly 

 constituted. 



Various attempts have been made to ascertain whether any of the higher 

 members of the alcohol series of bases, and particularly caprylamine, exist in 

 bone oil, but without success. Some difficulty attends the examination, because 

 the boiling points of these substances do not differ very greatly from those of the 

 different members of the pyridine series, and a small quantity existing along with 

 the latter might easily escape detection, but a careful examination of the first por- 

 tions passing over during the distillation of pyridine, and which ought to contain 

 any caprylamine, has satisfied me that it is not present. Taking into account 

 the great difference in the quantity of hydrogen in these two bases ; the for- 

 mer containing 6*3, and the latter 14*9 per cent, of that element, we should 

 anticipate, that in the analysis of the first portions of pyridine, the hydrogen 

 would be in excess if it contained caprylamine, and farther, as the bases of 

 the alcohol series are stronger than those of the pyridine series, it would follow 



