144 



Vacciiialion and SuuiUpox 



NOTE. 



Froiii thc "Times" of 20 November 1!JÜ2, il iippeurs Llial llie iVledical Urticur 

 of Health for Islington has prepared his tiual report oii the 1901-2 epidemic so far 

 as his own district was conccrned, but I havc becii unable to obtain a copy of it. 

 Tlie paragniiib in tlio " 'l'imes ", however, ciiables mc to form the foliowing table : 



TABLE XX. 

 Smallpox in Idingtuii, 27 August 1901 — 29 August 1902. 



,•=•5744 + -0560. 



This vahie of ?• is in extrenuly close agreemcnt with that obtained for 1017 

 cases which were " completed " in London in l!)ill ♦, viz. r = ".^779 + 'Ü-'U!. To 

 show that tho eloseness of the agreenient h(jlds tliroiighout the investigation, 

 I give the eqnations from which r \va.s calculated in both cases: 



For the abovo .SOI cases : 



•07OG08 /•«+ 002326 r +\r,l-^U) ,■* + 017030 7-^+ -336384 ?•» + r = -707743. 

 Für the 1017 cases : 



■071G07 i" + 001780 c" + •14963Ü /-^ + 0198442 >•» + 326092 r- + r= •710100. 



* Uiomrtriha, Vol. i. No. i. p. HT'.I. 



