252 Continuation of the Cornparison of the 



eighth day, without checking the progress ot the pustule. In 

 those cases which I have seen, the areola surrounding the 

 pustule was perfect. This was also remarked by Dr. Jenner, 

 in the case which I showed him. Dr. Marshall assured me, 

 that nothing but ocular demonstration oi:' such a case could 

 have convinced him of the possibility of its existence." 



*' I have had," savs Dr. Jenner, " an opportunitv of 

 trymg the effects of the cow- pock matter on a boy who, the 

 day preceding its insertion, sickened with the measles. The 

 eruption of the measles, attended with cough, a little pain 

 in the chest, and the usual symptoms accompanying that 

 disease, appeared on the third day, and spread all over him. 

 The disease went through its course without any deviaiion 

 from its usual habits; and, notwithstanding this, the cow- 

 pock virus excited its common appearances, both on the arm 

 and on the constitution, without any sensible interruption; 

 on the sixth dav there was a vesicle. 



*' 8th. Pain in the axilla, chilly, and affected with head- 

 ache. 



" 9th. Nearly well. 



" 12th. The pustule spread to the size of a large split 

 pea, but without any surrounding efflorescence. It soon 

 afterwards scabbed, and the boy recovered his general health 

 rapidly.. But it should be observed, that, before it scabbed, 

 the eflioresccnce, which had suffered a temporary suspension, 

 advanced in the usual manner. 



" Here we see a deviation from the ordinary habits of the 

 small-pox ; as it has been observed, that tiie presence of the 

 measles suspends the action of variolous matter. liowcver, 

 the suspension of the efflorescence is worthy of observation. 



" Tile case of co-exisleuee of the cov.-pox and the 

 chicken-pox, which occurred to Mr. Little, of Plymouth, 

 is published by Mr. DuuninLS in his Observations on Vac- 

 cination. In that case the chieken-poek appeared on tiic 

 teutli day of vaccine inoculation. The vaccine pustule was 

 at that time arrived at its height of Iniiannnaiiou, and main- 

 tained its spccillc character." 



A most remarkable ease occurred to me. A girl, aged 



about nine, living w idi the dowager tiie countess of C , 



fell from the balustrade of th<" srair-case, from the height of 

 above forty feet, and pitched on her skull on the stone land- 

 insc-place. Tlic fracture was exleutive, and the largest piece 

 of ""bone ever rcmemiicred was taken away by Mr. lieaviside, 

 which is to be seen in his invaluable museum. A silver 

 plate now defends the brain. This child was cautiously 



watched. 



