92 PROFESSOR FORBES’ INQUIRIES ABOUT TERRESTRIAL TEMPERATURE. 
Postscript. 
[have great pleasure in here acknowledging the active assistance which I have 
derived from Mr BaLrour STEWART’S great aptitude for calculation in the numer- 
ous and irksome eliminations which my inquiries rendered necessary, and of 
which only a portion are recorded in this paper. 
As an appendix to this memoir [ add an Index, which I have constructed with 
no small personal labour, and with every attention to accuracy, of the numerous 
stations from whence M. Dove has collected the monthly means of thermometri- 
cal observations, often for a long series of years. These are contained in his well- 
known “ Five Memoirs on Terrestrial Temperature” in the Berlin Transactions. 
