Without numerous standard observations or fixed stations, where the true eleva tion has been obtained, and to which locomotive observations can be referred, no accurate results can be obtained.
The elevations I had seen recorded in books were found, upon examination, to be often absurd.  Without numerous standard observations or fixed stations, where the true eleva tion has been obtained, and to which locomotive observations can be referred, no accurate results can be obtained.  I found M. Nicollet a most amiable and sociable person, full of intelligence and zeal.