< 
PHILOSOPHICAL 
TRANSACTIONS. 
XIX. An Attempt to make a Thermometer for meafuring the 
higher Degrees of Heat, from a red Heat up to the ftrongeft 
that Vejfels made of Clay can fupport. By Jofiah Wedgwood; 
communicated by Sir Jofeph Banks, Bart. P. R. S . 
Read May 9, 1782. 
A MEASURE for the higher degrees of heat, fuch as the 
common thermometers afford for the lower ones, would 
be an important acquifition, both to the philofopher and the 
practical artiff. The latter muff feel the want of fuch a meafure 
Vol. LXXII. S f on 
