Mni?ARY 

 NEW YORK 



BULLETIIV BOTAN.CAL 



QAKOBN. 

 OF 



THE CHARLESTON MUSEUM 



Vol. 5 CHARLESTON, S. C, OCTOBER, 1909 No. 6 



EXHIBITS AT THE MUSEUfl 



Meteorology 



Last spring we announced that the chief of the United States 

 Weather Bureau had authorized the installation in the Museum 

 of a complete set of the meteorological instruments used in 

 Weather Bureau stations throughout the country. This ex- 

 hibit is now open for inspection and will be made the basis of 

 public lectures and educational work with the schools for the 

 purpose of promoting a better understanding of the principles 

 of meteorology and their relation to weather forecasts. 



The equipment includes a platform on the roof, on which a 

 wind vane for determining the direction of the wind, an anemo- 

 meter for measuring its velocity, a sunshine recorder, and rain 

 gauges are erected . These instruments are connected electrically 

 with a recording apparatus, known as a meteorograph, in the 

 entrance hall. This instrument runs by clockwork and makes 

 a continuous record of the direction and velocity of the wind, 

 the duration of sunshine, and the amount and time of rainfall. 

 Beside the meteorograph are shown duplicates of the instru- 

 ments on the roof, as well as a whirling apparatus for demon- 

 strating'the use of wet and dry bulb thermometers, and a baro- 

 graph, which makes a continuous record of barometric pi'essure. 

 Standard mercurial barometers are also shown in tlie lialj, 



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