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seven ounces of Opium, made by Mr. Thomas Jones, of Fish Street Hill, 
from Poppies grown on his plantation at Enfield; and I declare, that it ap¬ 
pears to me to be as fine Opium as the best I have ever seen in the course 
of my experience, for upwards of thirty years: and I further declare, that 
the whole of the said twenty-one pounds seven ounces, is of equal quality 
with the five pounds sent herewith for the inspection of the said Society. 
William Duncan. 
The Committee of the Society for the Encouragement of Arts , &c. 
Gentlemen, agreeably to your request to the Physicians of St. George's 
Hospital, conveyed in a letter of the 5 th of May last, I, as one of that body, 
return you the result of the trials made with the English Opium, in a few 
cases under my care. Then follow the cases. 
If a larger quantity of the drug, whose virtues were to be determined by 
experience, had been sent, more trials would have been made; but I have 
no doubt that the same effects, and by at least as small a dose, would have 
been produced by it as by the best foreign Opium. 
I have the honour to be, Gentlemen, your most obedient servant, 
G. Pearson. 
To the Committee of the Society for the Encouragement of Arts P Sfc. 
Gentlemen, agreeably to your request, we have tried the Opium you 
were so good as to send to the Hospital, and am sorry, in the short time in 
which you desired an answer, that we have had only one case to give it a 
fair trial, namely, Elizabeth Spraughton, who has been several weeks under 
the care of Dr. Vaughan with a diseased state of stomach, and in whom we 
suspect a schirrus of that viscus. She has been in the habit of taking one 
grain of Opium every four or six hours, according to the violence of pain 
which she suffered. On the sixth of May she began with your English 
Opium, made into pills of one grain each, and found as much relief as she 
used to do from the foreign Opium. She has continued taking them ever 
since, and with the same effect. 
I remain, Gentlemen, your obedient humble servant, 
G. E. Lawrence, Apothecary. 
The Committee of Chemistry, to whose examination the English Opium, 
prepared by Mr. Jones, was referred by the Society, ordered samples of the 
5 B 
