[ so7 ] 
by a much greater number than. its complement: that as much 
{pace as poflible might be made for beds, the chimney had been 
ftopped up with bricks, and it had been the conftant cuftom of 
the fervant at night to keep the door fhut and to.clofe the window 
fhutters, that as little freth air as poflible might. be admitted. 
On enquiry it appeared that three candles and a lamp of oil had. 
-been generally ufed during the night in this chamber, but they 
were hardly of any fervice, giving a glimmering light. and fre— 
quently almoft extinguifhed. 
Sir George advifed. the chamber of the fick to be evacuated. 
without delay, the healthy to be feparated from. the difeafed, 
the chimney. to be opened, and whatever tended to exclude freth 
air to be removed. Thefe direGtions were complied. with, and 
the patients having been removed to a large apartment (where 
proper care was taken that frefh air might be admitted) paffed 
a quiet night free from every fymptom of the difeafe. However, 
the next morning, immediately on their awaking, they were all 
feized in the ufual manner, but it was very foon obfervable, that 
the: paroxyfms returned lefs often and with lefs violence, and fome- 
times without convulfions, and that during the. intervals the de- 
lirtum appeared gradually to abate. 
' From: thefe and various other important, fats which we cannot 
here recite, Sir George. conjeures that: the: fource of. this extraor- 
dinary difeafe was vrtiated air. To me his evidence appears fufi- 
cient to afford convi€tion to every reafonable mind, and if Iam not 
_ miftaken, it adds greatly to the probability of the opinion, which » 
. fuppofes that the nine day fits originated from a fimilar fource. 
“2 Upon 
