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authority upon subjects of this kind. It was stated by
Dr. Farr,in the Cholera Report of 1848-9, "That after the
temperature of the Thames has risen above 60°, summer
cholera and dysentery become prevalent, and disappear
as the temperature subsides." Now, it is a remarkable
circumstance, that although the temperature of the
Thames, as ascertained for me by the Physicians'
Assistant to the Dreadnought, was at 60° on the 18th of
May, and has never since been below that temperature,
the usual prevalence of diarrhoea did not occur until
the middle of June, when the temperature had reached
to 65°. Mr. Glaisher has recently expressed his opinion
that this postponement of diarrhoea until the Thames
had reached the temperature of 65°, which has now
happened for the first time within the period of observation,
is owing to the improvement of the sanitary
state of the Metropolis, effected by the New Sanitary
Administration.
Hitherto the disease has told exclusively upon
infants and aged persons. By referring to Table I. it
will be seen that 14 deaths occurred amongst children
under 5 years old and the remaining 6 in persons
over 60.
One case of Cholera, which recovered under the care of
Mr. Roper, has occurred. It is in the highest degree probable
that the severity of this case was caused by the
fermentation of foecal matter. It arose at the entrance
of Motley Court, a spot unprovided with Sewerage, where