688 PHILOSOPHICAL TRANSACTIONS. [aNNO 1712. 



bad scarcely arrived at the heart, when the dog presently fell into deadly 

 convulsions over his whole body: on which we let him loose, but he died 

 immediately. 



November the 18th, we caused a whelp to be bitten in the lower lip by a 

 caecilia, or blind worm, so that the blood appeared in the wound. The whelp 

 died indeed the same day, but because we had committed him to the care of 

 another person, we could not be certain whether he died of the wound or not; 

 and what increased our suspicion was, that there did not appear on the part that 

 was bitten any livid colour. — December 12 we injected into the jugular vein of 

 a dog a drachm of salt of tartar, dissolved in an ounce of warm water; he died 

 crying, and in convulsions, almost immediately. — December 15 we found a 

 polypus in both the ventricles of the heart of a dog, each polypus stretching 

 itself with a double root into the vessels of the ventricle it possessed. After- 

 wards we often observed the like polypuses in other dogs. 



December 20, we injected warm into the jugular, vein of a dog an ounce of 

 urine, made by a man fasting. The dog was uneasy during the injection, and 

 while the liquor passed to the heart; but he was not seized with any convulsions 

 or other ill symptoms; and being let loose, eat bread very greedily. — The same 

 day we made a gentle decoction of 2 drachms of white hellebore, well powdered, 

 in spring water, and evaporated it away to g-^ drachms; and the next day in- 

 jected all the decoction, strongly pressed out and turbid, into the jugular vein 

 of a dog. At first some few drops only passed to the heart, as some concreted 

 blood obstructed the passage; but those drops very much affected the dog, as 

 he was immediately seized with convulsive motions; but soon after, when the 

 liquor had removed what lay in its way, and had entered the heart, it killed the 

 dog as suddenly as if he had been shot through the heart with a bullet; for 

 having loosened him presently, to see if any life remained, he was quite dead 

 and flaccid, and hung like a fleece in the hand of the person that held him. 



January 2, 1679, vinegar was injected warm into the jugular vein of a dog, * 

 without doing him any manifest harm. — The same day we caused a whelp to be 

 stung in the tongue by several scorpions, but the wounds made by the scor- 

 pions, by reason of their weakness, being but slight, and not penetrating deep, 

 we made a small incision on the abdomen, and drawing aside the skin, let the 

 scorpions make several wounds on it ; but without any effect, though we often 

 forced the sting into the wounds, and pressed the bladder that is supposed to 

 contain the venom. — In like manner a pigeon, being several times stung by a 

 scorpion, remained unhurt. 



January the 3d, 2 drachms of sugar dissolved in an ounce of water, were in- 

 jected into the jugular vein of a dog, he received no harm from the injection. 



