and the patient recovered. I saw him try both experiments upon a dog, but could not discern any effect from the former. After the latter the animal was ready to burst, and made so violent a discharge, as was very offensive to me and my companions. The dog died on the spot, and we left the doctor endeavouring to recover him, by the same operation.
I visited many other apartments, but shall not trouble my reader with all the curiosities I observed, being studious of brevity.
I had hitherto seen only one side of the academy, the other being appropriated to the advancers of speculative learning, of whom I shall say something, when I have mentioned one illustrious person more, who is called among them the universal artist. He told us, he had been thirty years employing his thoughts for the improvement of human life. He had two large rooms full of wonderful curiosities, and fifty men at work. Some, were condensing air into a dry tangible substance, by extracting the nitre, and letting the aqueous or fluid particles percolate; others, softening marble, for pillows and pincushions: others, petrifying the hoofs of a living horse, to preserve them from foundering. The artist himself, was at that time busy upon two great designs; the first to sow land with chaff, wherein he affirmed the true seminal virtue to be contained, as he demonstrated by several experiments, which I was not skilful enough to comprehend. The other was, by a certain composition of gums, minerals, and vegetables, outwardly applied, to prevent the growth of wool upon two young
