New York Weather Bureau, 3G9 



The dry, wet and maximum and mlBimuim thermometers are ex- 

 posed O'n the northwestern side of a wing of the observer's house, 

 and under the roof of a piazza 5 feet wide. The instruments are 

 secured to the wood work of the wing 6 feet above the floor and 9 

 feet above the ground. The room within is heated throughout 

 the year; but as a check, a standard thermometer located in a 

 shaded position away from the veranda is read at each observation 

 and thus far the results have agreed very closely. The sun's heat 

 is excluded from the piazza until late in the afternoon, when the 

 floor and the walls are liable to radiate their heat to the instru- 

 ments. Efl'orts have been made to remedy this defect. 



The rain-gauge is located about 35 feet west of the wing of the 

 house (1^ stories in height), and a distance from a low outbuilding 

 equal to the height of the latter. The top of the gauge is about 5 

 feet above the ground. 



ST. LAWRENCE VALLEY — ST. LAWRENCE COUNTY. 

 Station^ Potsdam — Mr. G. W. P. Smith, Observer. 



Established December, 1889; latitude, 44 deg. 40 min. north; longitude, 75 deg. 01 min. 

 west; elevation. 300 feet. 



This station is situated on Leroy street^ Potsdam, at a distance of 

 1 mile north from the center of the town, and well removed from 

 other buildings. The station is about 100 feet above the tracks 

 of the Rome, Watertown and Ogdensburg railroad, on the summit 

 of a knoll which is the highest point within a radius of a mile. 

 The ground slopes gradually away from the station in all direc- 

 tions. The surrounding country is flat as far as the Adirondack 

 foot hills, nearly 10 miles distant. 



The dry and wet bulb and maximum and minimum thermometers 

 are exposed in a shelter which is built out from the window on the 

 north side of a low, unheated building attached to Mr. Smith's resi- 

 dence. The shelter is louvred at the sides and front, and in the 

 rear a small door gives access to the instruments from the interior 

 of the building. The dimensions of the shelter are about 3 by 2^ 



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