VOL. XXVII.] ' PHILOSOPHICAL TRANSACTIONS. 6g3 



dog. Daring the operation he continued pretty quiet, without any sign of pain 

 or uneasiness; and when it was over we let him loose, expecting the event of 

 it. He was melancholy and dejected, but easy and without any sensible com- 

 motion, for the space of an hour. After that, his respiration grew quicker, 

 he had a murmuring noise in his belly, with violent commotions of the muscles 

 of his abdomen, diaphragm, stomach and intestines, and vomited plentifully a 

 bilious matter. After his vomiting he grew faint, and in a little time his vomit- 

 ing returned again; so that in an hour and a half he vomited 4 times. His 

 strength and appetite were very weak, and he would eat nothing for 3 days. 

 But on the 3d day his appetite, strength, and former briskness returned, and 

 he recovered. 



Two dogs, which had their recurrent nerves cut, lost their barking and 

 voice. But doubting whether the wound or scar might not affect and hurt the 

 motion of the muscles, we performed the same operation on another dog, but 

 without cutting the nerves ; and when the wound was healed, he barked as 

 freely as before. — A dog that had the nerves of the par vagum cut asunder, 

 presently grew dejected and faint. He breathed vei;y slowly, and with sighs ; 

 for when he had drawn in his breath leisurely and insensibly, it came forth 

 again immediately very forcibly, and with a sigh, as if it had been retained a 

 long time in the lungs. The muscles of the abdomen and the diaphragm la- 

 boured hard, as if they were to supply the defect of the lungs, which were 

 grown almost useless, by being denied an influx of spirits by the pneumonic 

 nerves. The dog refused all kind of meat; sometimes he vomited, or had an 

 inclination to vomit; and at last, in 2 days time, he died. 



Another dog, that had the nerves of the par vagum only tied, lived 10 days. 

 He vomited frequently, and would not eat, unless clandestinely : he breathed 

 with sighs, and was very faint. — A dog, that had the trunk of the aorta descen- 

 dens tied hard, a little above the diaphragm, immediately lost the use of his 

 hind legs ; for when he stood on his fore legs, he would draw after him his 

 hinder legs, as if they had been dead: he grew weaker by degrees, and died in 

 5 hours. — July the 12th, a mole being stung in the side by a scorpion, died 

 immediately convulsed. On this occasion we observed, that the intestinum 

 caecum is wanting in moles. 



Observations on Natural History and Antiquities, in Travels through Wales. 

 By Mr. Edw. Lhwyd. N° 335, p. 500. 



In a steep rock, called Craig y park, and others in the parish of Ystrad Dy- 

 vodog, we observed divers veins of coal, exposed to sight as naked as the rock; 

 and found a flint axe, somewhat like those used by the Americans. At Gold- 



