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Updated: May 17, 2025
In July, 1840, a memorial was presented to Congress, from the American Philosophical Society of Philadelphia, asking the aid of government to carry on a series of magnetic and meteorological observations.
When discussing the plant in this respect we found as an instance 'worth a thousand, bearing all within itself the case of Tillandsia and more particularly the surprising appearance of phosphorus in it. Now, in the meteorological realm it is once more phosphorus which gives us an instance of this kind.
W. A. Eddy was one of the pioneers, and a very serviceable tailless kite, in which the cross-bar is bowed away from the wind, is his invention, and has been much in use. Mr. Eddy established his kite at Blue Hill the now famous kite observatory and succeeded in lifting self-recording meteorological instruments to considerable heights.
Fashionable society soon turned to pursuits other than watching balloon ascents, however, and the joys of the air were confined to a few adventurous spirits, such as Green and Holland, who first substituted coal gas for hydrogen and in 1836 made a voyage of 500 miles from Vauxhall Gardens to Weilburg in Nassau, and James Glaisher, who in the middle of the century began to make meteorological observations from balloons, claiming on one occasion, in 1862, to have reached the great height of 7 miles.
The evaporation of the juices of trees and other plants is doubtless their most important thermoscopic function, and as recent observations lead to the conclusion that the quantity of moisture exhaled by vegetables has been hitherto underrated, we must ascribe to this element a higher value than has been usually assigned to it as a meteorological influence.
Lislet Geoffroy, a mulatto, was an officer of Artillery and guardian of the Depôt of Maps and Plans of the Isle of France. He was a correspondent of the French Academy of Sciences, to whom he regularly transmitted meteorological observations, and sometimes hydrographical journals. His map of the Isles of France and Reunion is considered the best map of those islands that has appeared.
Researches are now being carried on which tend to show that the meteorology of the two hemispheres is more interdependent than was hitherto believed, so that a meteorological disturbance in one part of the world makes its presence felt, more or less remotely perhaps, all over the world.
Besides these simultaneous reports from the one hundred and eight United States stations which are telegraphed to the central office at Washington, there are received there daily three hundred and eighty-three volunteer reports from every part of the country, these being the system of meteorological observations under control of the Smithsonian Institution for twenty-four years, and given in charge to the Signal Service Bureau in 1874.
In place of the old Nilometers, the amount of the rise of the Nile is now reported by telegraph from meteorological stations. It is popularly supposed that at every rise the plains of the Delta are inundated, but this is not the case. The actual overflow of the banks of the river and canals is the exception, and when it happens is most disastrous.
All of us were occupied all the time. Our house was warm, dry, light and airy, and we all enjoyed the best of health. We had no physician and needed none. Meteorological observations were taken continuously. The results were surprising. We had thought that we should have disagreeable, stormy weather, but this was not the case.
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