CLASS II. i. 3. n. OF SENSATION. 209 



aifo change of air is of material confequence, and often removes 

 the cough like a charm, as mentioned in a fimilar iuuation at 

 the end of the chin-cough. 



Rubeola inlrntata. Meafles with inirritated fever, or with 

 weak pttlfe, has been fpoken of by fome writers. See London 

 Med. O'bferv. Vol. IV. Art. XL It has alfo been faid to have 

 been attended with fore throat. Eduib. Effays, Vol. V. Art. II. 

 Could the fcarlet fever have been miflaken for the meafles ? or 

 might one of them have fucceeded the other, as in the mcafles 

 and fmall-pox mentioned in Seel:. XXXIII. 2. 9. ? 



From what has been faid, it is probable that inoculation might 

 difarm the meafles as much as the fmall-pox, by preventing the 

 catarrh, and frequent pulmonary inflammation, which attends 

 this difeafe , both of which are probably the confequence of 

 the immediate application of the contagious miafmata to theic 

 membranes. Some attempts have been made, but a difficulty 

 feems to arife in giving the difeafe ; the blood, I conjecture, 

 would not infect, nor the tears ; perhaps the mucous difcharge 

 from the noftrils might fucceed ; or a drop of warm water put 

 On the eruptions, arid fcraped off again with the edge of a lan- 

 cet ; or if the brariny fcales were collected, and moillened with 

 a little warm water ? Further experiments on this fubject would 

 be worthy the public attention. 



1 1. Scarlatina mitis. The fcarlet fever exifts with all decrees 

 of virulence, from a flea-bite to the plague. The infectious 

 material of this difeafe, like that of the fmall-pox, I fuppofe to 

 be diffufed, not diffoived, in the air ; on which account I fui- 

 pecl: that it requires a much nearer approach to the lick for a 

 well perfon to receive the infection, than in the me;i!!i>. ; the 

 contagion of which I believe to be more volatile, or diffufible, 

 in the atmofphere. But as the contagious miafmata of fmall- 

 pox and fcarlet fever are fuppofed to be m#re fixed, they may 

 remain for a longer time in clothes or furniture ; as a thread dip- 

 ped in variolous matter has given the difeafe by inoculation after 

 having been expofed many days to the air, and after having been 

 kept many months in a phial. This alfo accounts for the flow or 

 fporadic progrefs of the fcarlet fever, as it infects others at but 

 a very fmall diftance from the lick ; and does not produce a 

 quantity of pus-like matter, like the fmall-pox, which can ad- 

 here to the clothes of the attendants, and when dried is hao!o 

 to be (haken off in the form of powder, and thus propagate the 

 infection. 



This contagious powder of the fmai!-pox, and of the fcarlet 

 fever, becomes mixed with filiva in the mouth, and is thus car- 

 ried to the tonfils, the mucus of which arrefts fome paiuacs of 



VOL. II. D i> 



