and singular, true: I cannot gainsay them: and truth ever was, and will be, commendable. But in these three theorems, I believe we have exhausted the stock of knowledge as yet accumulated by man on the subject of opium. And therefore, worthy doctors, as there seems to be room for further discoveries, stand aside, and allow me to come forward and lecture on this matter.
First, then, it is not so much affirmed as taken for granted, by all who ever mention opium, formally or incidentally, that it does, or can, produce intoxication. Now, reader, assure yourself, meo periculo, that no quantity of opium ever did, or could intoxicate. As to the tincture of opium (commonly called laudanum) that might certainly intoxicate if a man could bear to take enough of it; but why? because it contains so much proof spirit, and not because it contains so much opium. But crude opium, I
careful never to take above five-and-twenty ounces of laudanum at once;' the true reading being probably five and twenty drops, which are held equal to about one grain of crude opium.
