210 On the Animal Calculus, 
and half of near double the Strength of the 
former wa^ injeded, he feemed uneafy as if 
troubled with the Strangury, but the uneafy 
Symptoms went off in half an Hour. Some 
Days after I killed the Dog, but could 
not perceive on opening him, - that the in- 
jeded Liquor had done any harm to his Blad- 
der. 
2. Thefe Injedions are eafily made into a 
Dog's Bladder, by paffing a Catheter dired- 
ly into it, thro' an artificial Ftfiula made in the 
Perinaumy as direded by Mr. John Dottglas^, 
Surgeon, F. R. S. in the Philofoph. Tranf. 
Numb. 3^5>. 
3. I injeded alfo the fame Liquor twelve 
feveral Days into the Bladder of a Bitch, af- 
ter which fhe fometimes (hewed fome Uneafi- 
nefs for, a little while and fometimes not. She 
continued very lively and brisk long after ; but 
fome Months after in the following Summer, 
file v/as in Copulation Dog-drawn as it is call- 
ed,' i, e, the Vagina was drawn out, which^ 
caufed her Death, whence we may conclude, - 
that its Fibres were hardened and contraded 
by the acid Spirit of Sulphur, and it may pro- 
bably have had the like Efifed on the Fibres 
of the Bladder.* It is. therefore by no'means^ 
advifeable- 
