C 534 3 
lordfhip’s fuperior judgment, being with all pofiibL 
refpedt, 
My Lord, 
Your Lordfhip’s mod: obedient 
i ' 
humble fervant, 
London, Mar. 8, 
1756. 
Robert Dingley. 
LXXV. Thoughts o?i the Revere?id Dr. HalesV 
new Method of Diflillation by the united 
Force of Air aitd Fire. By William Brown- 
rigg, M. D. F. R. S. 
To the Rev . Dr. Hales, D. D. F. R . S. 
Dear Sir, Whitehaven, Dec. 3, 1755. 
*ead Feb. 26,*W"P) ue ]y received the favour of your let- 
ter, written fo long ago as the latter end 
of May lafl j containing an account of your impor- 
tant difcovery of raifing large quantities of water by 
the united operation of air and fire, in your new 
method of difiillation. In obedience to your com- 
mands, on the receipt of your letter, I immediately 
fet about confidering to what ufes your ingenious in- 
vention might be applied, befides the great one of 
fupplying navigators with frefii water j and fhortly 
after wrote out the inclofed paper relating to the im- 
provement 
