? 
‘METEOROLOGICAL OBSERVATIONS MADE DURING THE JOURNEY. 
Comparison of barometers. 
According to three observations made at the observatory of Paris, Lieutenant Frémont’s barom- 
eter, constructed by Bunten, is 0.23 millimetres higher than the standard of the o' observatory. ‘ 
The result of forty-three comparative observations of both a of Mr. Frémont with both 
my mmr. ag the following : 
nglish) — E (French) — 0.051 inch = Fr. (N. Y.) — 0.034 inch — Fr. 
(Bunten) — 0.091 inch. 
“Barometer y (French) = E (English) a 0.051 inch = Fr. (N. Y. ) + 0.017 inch = Fr. 
(Bunten) — 0 inch. 
Barometer (Bunten) — Fr. (NLY. ) + 0.057 inch. 
Observations ‘Hon May. to May 11, 1843. 
Range of barometer during the time, — 0/’.4. 
Range of thermometer, — 60° to 80° Fahrenheit. 
G. ENGELMANN. 
St. Louts, May 13, 1843. ¢ 
