NOTE BY THE TRANSLATOR 



IN the translation, the temperatures are given in degrees of Fahr- 

 enheit, retaining at the same time the original figures in Reaumur's 

 scale. In the same manner, the measures are given in English feet, 

 generally retaining at the same time the original statements in Pa- 

 risian or French feet or toises, a desirable precaution where accuracy 

 is important. The miles are given in geographical miles, sixty to a 

 degree ; but in this case the original figures have usually been omit- 

 ted, the conversion being so simple as to render the introduction of 

 error very improbable. In a very few instances, '" English miles" 

 appear without any farther epithet or explanation; these have been 

 taken by the author from English sources, and may probably signify 

 statute miles. The longitudes from Greenwich are substituted for 

 those from Paris, retaining in addition the original statement in 

 particular cases. 



