456 Messrs. A. Matthiessen and C. R. A. Wright on the [June 10, 



(1) 1-824 gramme of M'Farlane's morphia thus lost 0-111 gramme. 



(2) 2-458 grammes „ „ 0-145 



(3) 2*312 „ „ , after recrystallization from 

 boiling alcohol, lost 0*148 gramme. 



Calculated. Found. 



(I.) (II.) (III.) 



H 2 18 5-94 6-09 5*90 6-40 

 C 17 H 19 N0 3 285 94-06 



C 17 H 19 N0 3 + H 2 Q 303 100-00 

 Combustions of morphia with oxide of copper and oxygen : — 

 (I.) 0*3015 gramme of M'Farlane's morphia, dried at 120°, gave 0*7950 



carbonic acid and 0*1890 water. 



(II.) Morphia recrystallized from boiling alcohol, and dried at 120°: — 



0*3635 gramme gave 0*9535 carbonic acid and 0*2230 water. 



Calculated. Found. 



(I.) (II.) 



C 17 204 71*58 71*91 71*54 



H 19 19 6-66 6-97 6-81 



N 14 4-91 



O, 48 16*85 



C 17 H 19 N0 3 285 100-00 



Morphia recrystallized from boiling alcohol, and dried below 100° : — 

 0-3575 gramme gave 0*8780 carbonic acid and 0*234 water. 



Calculated. Found. 



C 17 204 67*33 67*00 



H n 21 6*93 7*27 

 N 14 4*62 

 4 64 21-12 



C 17 H 19 N0 3 H 2 303 100*00 



When morphia is sealed up with a large excess of hydrochloric acid 

 (about 10 cub. centims. of ordinary acid, of about 35 per cent. HQ to each 

 gramme of morphia), and heated to 140°-150° for two or three hours, on 

 opening the tubes after cooling no gas is found to have been formed, nor is 

 there any formation of chloride of methyl. The residue in the tube contains 

 the hydrochlorate of a new base, differing considerably in its properties from 

 morphia. It may be obtained in a state of purity by dissolving the con- 

 tents of the tube in water, adding excess of bicarbonate of sodium (not the 

 ordinary carbonate Na 2 C0 3 , nor caustic soda, as these hasten the decom- 

 position of the precipitated base), and extracting the precipitate with ether 

 or chloroform, in both of which the new base is readily soluble, whilst 

 morphia is almost insoluble in both menstrua. On shaking up the ether 



