The book Topographic Hypsometric And Meteorologic Report was written by author 1877 Princeton Scientific Expedition Here you can read free online of Topographic Hypsometric And Meteorologic Report book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Topographic Hypsometric And Meteorologic Report a good or bad book?
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TIME. T. B. t. Aneroid. , REMARKS. A. M. 9-45 9-50 53-6 52. 8 18. 250 18. 252 49-1 48. 4 18. 85 18. 83 Fair and "warm. Clouds 4, cirro cumulus. 9-55 54-3 18. 250 4Q. I 18. 85 Wind S. E. I. JO. OO 52. 3 18. 250 47-3 18. 85 10. 05 50. 3 18. 248 48. 1 18. 85 10. 10 51. 6 18. 248 48. 3 18. 89 10. 15 50. 6 18. 250 47-1 18. 83 This table also gives the form in which our observations were taken and kept. These facts lead us to infer that, though the aneroid may answer very well for the comparatively s...mall heights of our Eastern coasts, it will hardly do for such great elevations, or for such long distances as are found in the West. It needs constant watching and correcting by comparisons with a mercurial barometer, as its zero point is apt to change by the handling of the instrument. The influence of the tempera- ture, even in those which bear on their face " compensated" is by no means eliminated, and a correction has to be found ex- perimentally for each instrument. It also needs (an idea which few persons having an aneroid seem to realize) con- siderable care in transportation, and an accident to it is whol- ly beyond the possibility of repair in the field, while a mercu- rial barometer, with the aid of a little ingenuity, can be read- ily repaired, if pains have been taken to carry the requisite duplicate parts along with the instrument.
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