DISEASES SECT. XXXIII. 2. 9. 



who appeared afterwards to have been pevioufly infefted with 

 the meafles, the progrefs of the fmall-pox was delayed till the 

 meafles had run their courfe, and that then the fmall-pox went 

 through its ufual periods. 



Two fimilar cafes fell under my care, which I (hall here re- 

 late, as it confirms that of Mr. Hunter, and contributes to illuf- 

 trate this part of the theory of contagious difeafes, I have tranf- 

 cribed the particulars from a letter of Mr. Lightwood, of Yoxal, 

 the furgeon who daily attended them, and at my requeft, after I 

 had feen them, kept a kind of journal of their cafes. 



Mifs H. and Mifs L two fitters, the one about four and the 

 other about three years old, were inoculated Feb. 7, 1791. On 

 the i oth there was a rednefs on both arms difcernible by a glafs. 

 On the nth their arms were fo much inflamed, as to leave no 

 doubt of the infeUon having taken place. On the 1 2th ieis 

 appearance of inflammation on their arms. In the evening Mifs 

 L. had an eruption, which refembled the meafles. On the i3th 

 the eruption on Mifs L. was very full on the face and breaft, 

 like the meafles, with confiderabie fever. It was now known, 

 that the meafles were in a farm houfe in the neighbourhood. 

 Mifs H/s armlefs inflamed than yefterday. On^the I4th Mifs 

 L.'s fever great, and the eruption univerfal. The arm appears 

 to be healed. Mifs H.'s arm fomewhat redder. They were 

 now put into feparate rooms. On the 1 5th Mifs L.'s arms as 

 yeRerday. Eruption continues. Mils H/s arms have varied 

 but little. 1 6th, the eruptions on Mifs L are dying away, her 

 fever gone. Begins to have a little rednefs in one arm at the 

 place of inoculation. Mifs H.'s arms get redder, but (he has no 

 appearance of complaint. 2oth, Mifs L's arms have advanced 

 flowly till this day, and now a few puftules appear. Mils H.'s 

 arm has made little progrefs from the i6th to this day, and now 

 {he has fome fever. 21 ft, Mifs L. as yefterday. Mifs H. has 

 much inflammation, and an increafe of the red circle on one arm 

 to the fize of half-a-crown, and had much fever at night, with 

 fetid breath. 22d, MifsL 's puftules continue advancing. Mifs 

 H.'s inflammation of her arm and red circle increafes. A few 

 red fpots appear in different parts with fome degree of fever this 

 morning. 23d, Mifs L. has a larger crop of puftules. Mifs 

 H. hasfmall puftules and great inflammation of her arms, with 

 but one puftule likely to fuppurate. After this day they gradu- 

 ally got well, and the puftules difappeared. 



In one of thefe cafes the meafles went through their common 

 courfe with milder fymptoms than ufual, and in the other the 

 meafly contagion feemed juft fufficient to ftop the progreis of 

 variolous contagion, but without itfelf throwing the conftitution 



into 



