1819.] Scientific Intelligence. 155 
(4.)—Acetate of Morphia:—Crystallizes in needles. Soluble 
in its own weight of water. Constituents, 
A\GIIG el eee ena BO Nistevaror erent 6°375 
mreEpine? ye. SS 4p Opi DNRSS ~ 2791 
Water. sofete Ae 20 
100 
(5). Tartrate of Morphia.—Crystallizes in prisms. Soluble 
in thrice its weight of water. Constituents, 
Mee! MH ee Se yt: 2 UsTel. te 8:375 
Morphia. -......+6. ay etesc kere 7-178 
OY AE to a oe apphnf ere, 
100 
(6.) Carbonate of Morphia.—Crystals short prisms. Soluble 
in four times its weight of water. Constituents, 
PRETO 's cdi. ta aia t tit see sine ica 2°75 
MEOrpBiia.-| sig. Tape, oles » 21 woah s ahs OF 2-16 
Water: ile. sees. 50 
100 
XVI. On the Equivalent Number for Morphia. 
From the numbers which I have annexed to the preceding 
analyses of Choulant, indicating the weight of the atoms of the 
acids, and the corresponding number for morphia, it is obvious 
that the analyses are very far from correct; for we obtain a pecu- 
liar number for morphia from each salt. These numbers are as 
follows : 
From.the sulphate. ...... 9-009 
Bthat@c. a5 of tre 12-150 
MUP A. <.adeas wb ber 
acetate’: J. 4st. 7:79) 
tartrate :.2.. AN Be fo 
carbonate ...... 2-160 
The number from the carbonate differs so far from the rest 
that we must exclude it. Itis obvious that the substance exa~- 
mined must either have been a mixture, or a subsalt. The mean 
deduced from the remaining five salts, gives us 8268 for the 
weight of an atom of morphia. In the present state of the 
investigation, we may take 8:25 as an approximation to the 
weight of an atom of morphia ; but in all probability it is not a 
very near one. Choulant’s experiments must have been made 
upon too small a scale to expect accurate numerical results. 
