LA SALLE, ILL. 
ORIGINAL MONTHLY RECORD OF OBSERVATIONS at _:___ for the Month of _ 
Number of Station barometer, __; sum of corrections, _ inch. 
jj 
Reference letters in thin form refer to paragraph 122, f Uy dial wlieu self-register le out of onlor. ff T indicates trace of precipitation. 
“Instructions for Preparing Meteorological Forms." 
