148 PHILOSOPHICAL TRANSACTIONS. [aNNO 1751. 



He had likewise made trial of this extract on other rabbits, dogs, and cats ; and 

 the effect was the same, more or less. Of all the extracts, which he employed, 

 as for example those of henbane, nightshade, tobacco, &c. he found none but 

 that of white hellebore that seemed to raise some little disorder in the animal 

 economy. The essential oil of the lauro-cerasus did not incommode the ani- 

 mals, into whose mass of blood he conveyed it, instead of the poison. 



The 8th of June, with a lancet he made a very small incision between the 

 ears of a cat, and with a pencil he put into it a drop of the poison of ticunas 

 mixed with that of lamas : in an instant the creature died between his hands. 



June the Qth, he put some of the same poison into small wounds, which he 

 made in different parts of insects, reptiles, fishes ; and not one of them died 

 of it. 



The same day he made a wound, that penetrated into the cavity of the abdo- 

 men of a large cat, without hurting any of the contained parts ; and, with a 

 crotchet holding up the integuments, to keep them from touching the abdo- 

 minal viscera of this animal, that lay on its back, he introduced the end of a 

 funnel, and through it poured into the cavity of the abdomen about -^ dr. of the 

 poison of lamas mixed with that of ticunas. By this management he intended, 

 that the edges of the wound should not be wetted with the poison, and that it 

 should touch nothing but the surface of the abdominal viscera. He made a 

 suture of one stitch to join the lips of the wound, and he kept the integuments 

 constantly suspended, to prevent their touching the poison : and in this he was 

 certain that he succeeded. At first the creature did not seem to suffer much 

 from this operation ; but in an hour's time he died, with such violent convul- 

 sions in his throat, that it was almost impossible for him to breathe. 



June the 10th, he pricked with a lancet the left fore leg of a large fat cat, 

 and put in a drop of the poison of the ticunas. He let this animal run loose 

 about the room, without dressing the wound. By the time he had made a 

 turn round the room, he seemed very restless and timorous : his legs failed him ; 

 he lay fiat on his belly ; and the skin all over his body trembled considerably ; 

 the hair of his tail stood up, and his paws were agitated with a frightful tremor. 

 All this while the animal made no noise : in fine, his head fell all at once be- 

 tween his fore legs, and he died in 4 minutes after the insertion of the poison. 



June the 1 2th, he made the same experiment on 2 other cats, and on 3 dogs ; 

 these animals seemed to fall sick almost in an instant : the cats had their hair 

 bristled up, and their bodies gathered into a heap : they scratched the ground 

 with their fore feet. The dogs did the same, and all of them had a languishing 

 look, and their eyes bathed in tears ; some of them looked at him stedfastly, 

 and made a mournful noise : they were seized with a shivering, and in fine they 

 became paralytic in their feet only ; after which they died, turning their head 



