Foreign Vegetables, 371 
towards the End reddifh, of an acid, auftereTafte, 
and an empyreumatick Scent ; and laftly, three 
Drachms and twenty four Grains of dark reddifh, 
or brown, alkaline urinous Liquor, with a little 
urinous Salt. The black Mafs remaining in the 
Retort weighed two Ounces, thirty fix Grains 5 
which being calcined in a reverberatory Fire left 
three Drachms and fifty one Grains of Allies ; from 
which were extracted, by Lixiviation, one. Drachm 
and eighteen Grains of fixt Salt merely alkaline. 
The Lofs in Diftillation was four Ounces, fix 
Drachms and feven Grains ; and in Calcination, one 
Ounce, four Drachms and fifty feven Grains *. 
From thefe Analyfes it is evident, that thefe Parts 
of the Poppy confift of a tartarous and ammonia- 
cal Salt united, and a very thick Oil ; and that in 
the Heads is contained a larger Quantity of Earth, 
than in the Leaves and Stalks. 
Two Pounds of pure Opium, by a chymical Treat- 
ment, afforded twelve Ounces, two Drachms of Li- 
quor, both acid and urinous ; and two Ounces and 
three Drachms of thick Oil. The Caput mortuum 
remaining in the Retort weighed fifteen Ounces and 
four Drachms. This being calcined in a reverbe- 
ratory Fire left two Ounces and fixty Grains of 
Afhes ; from which were drawn, by Lixiviation, 
four Drachms and forty five Grains of fixt Salt 
merely alkaline. The Lofs in Diftillation was one 
* It appears, upon Calculation, that my Author has made a 
Miftake in fetting down fome of the Quantities ahovemen- 
tioned ; and befides, from what follows, we may conclude that 
he has forgot to infert the thick Oil, which here deferves 
our particular Notice. The Reader may perhaps find a few 
Overfights of the fame Nature in other Places, hut as they 
are not very material, and it would be impoflible to re&ify 
them, I have not thought it worth while to take upon me 
the Trouble of pointing them out, 
B b 2 
Ounce 
