738 



MEAN OF THE HORARY VARIATIONS OP SEVEN MONTHS 

 ON THE TABLE-LAND OF BOGOTA. 





BAROMETRIC MEAN OF 



EXTENT OF 



MEAN TEM- 

 PERATURE 

 OF THE 

 MONTHS. 



MONTHS. 



u — 



MAXIMA. 



MINIMA. 



THE OS- 

 CILLATIONS. 



January . . . 



249.04 



247 99 



1.05 



13.2* R, 



February ... 



248.90 



247.95 



0.95 



14.6 



March 



249.02 



248.03 



0.99 



13.7 



April 



249.04 



248.04 



1.00 



14.2 



May 



249.20 



248.22 



0.98 



13.8 



June 



249.17 



248.28 



0.89 



13.8 



July 



249.12 



248.17 



0.95 



14.2 



M. Caldas having published the mean tem- 

 perature of every day, and the maxima and 

 minima of the temperature of whole months, 

 but not the temperature from 9 h in the morn- 

 ing till 4 h in the evening, the barometric 

 heights of 1807 could not be reduced to the 

 freezing point. The case is the same with res- 

 pect to the diurnal observations from January 

 to July 1808. It may, however, be admitted, 

 that the mean temperature of 9 h in the morn- 

 ing (on the table-land of Bogota) is nearly 1.2° 

 lower of the centigrade thermometer, and the 

 mean temperature of 4 h in the afternoon 1.8° 

 higher than the mean temperature of the month. 



