64 Dr. Hunter’s Observations on the Heat 
fea at Brighthelmftone, during the months of July, Auguft, 
September, and October, was as follows : 
July 6 3 ° t 
Auguft 63T 
September 58° 
October 53 0 
The obfervations were made with a view to afcertain the 
temperature of the fea as a bath, and therefore the heat was 
taken about nine in the morning, and near the fhore, the 
ufual time and place of bathing. The water gets hotter 
towards three o’clock in the afternoon, fo that it not only fol- 
lows the monthly, but even the daily changes of the tempera- 
ture of the air. In the four months juft mentioned, the ex- 
tremes of heat and cold are confiderable : I have feen it as hot 
as 71 0 , and as cold as 49 0 . In the month of Auguft laft, Sir 
Henry Englefield examined the heat of the fea at 
the fame time that I did, and we both found it 71 0 : it was 
about 4 P.M. of a very hot day. I may be allowed to remark, 
that fea-bathing is a very different thing at different feafons of 
the year, and requires an acquaintance with the variations of 
the temperature, to adapt it to particular cafes. 
It were to be wifhed, that the heat of wells and fprings were 
examined at different feafons of the year, in order to afcertain 
the effect of fummer and of winter upon them. The 
wells at New York are from 32 to 40 feet in depth, and Dr. 
Nooth found them to have an annual variation of two degrees 
from 54 0 to 56°. There are few countries, in which the annual 
range of the thermometer is greater than at New York, and 
the neighbouring parts of America. In the fummer it is often 
as high as 96°, and in winter it has been obferved feveral de- 
grees below the zero of Fahrenheit’s fcale. 
The 
