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solvent action of water upon lead ; this conclusion was 
deduced from the results of a single experiment. Since that 
time I have performed many experiments with solutions of 
the salt in question, and the general result is, that water 
containing small quantities of Calcium Chloride in solution 
dissolves decidedly greater quantities of lead than are dis- 
solved by pure water under similar conditions. 
“On the Increased Mortality from Small- Pox,” by Joseph 
Baxendell, F.R.A.S. 
At a meeting of the Chorlton Board of Guardians, held 
on the 19th January last, Dr. Rice, the resident medical 
officer at the Chorlton Workhouse, presented an interesting 
and valuable report on the cases of small-pox treated in the 
workhouse hospital during the past year ; and I am induced 
to draw the attention of the Society to it because it cor- 
roborates in a very striking manner one of the most im- 
portant of the results given in my paper “ On Changes in 
the Rates of Mortality from Different Diseases during the 
twenty years 1854-73,” namely, that the rate of increase m 
the fatality from small-pox had of late years become very 
much greater among adults than among infants and young 
children. 
Dr. Rice states that 203 cases were treated in the hospital 
during the year, and he then gives the percentages of the 
vaccinated, revaccinated, and unvacciuated cases, and the 
percentages in each class. From these percentages I have 
calculated the actual numbers, and find that of the 203 
cases treated, there were 
149 vaccinated, 
3 re-vaccinated, 
51 un-vaccinated, 
and amongst the vaccinated there were 17 deaths, of which 
16 were adults and 1, a boy, 4 years old; and amongst the 
