616 
PROFESSOR FORBES ON CERTAIN HOT SPRINGS. 
I apprehend that the probable error, whether instrumental or of observation, in 
the above results, scarcely exceeds 0°*2 Fahr., with the following exceptions: Nos. 1. 
to 8. inclusive, 30, 31, 59, 60, may be under a doubt of perhaps 0°*4 Fahr., and 
Nos. 61, 62, of somewhat more. 
Edinburgh, 1 \th February, 1836. 
