304 Ninth Annual Report of the 



wing. The wiudow is only opened for the purpose of moistening 

 the wet-bulb thermometer. The ix>om within is unheated but the 

 corridor in the basement beneath is warmed by steam during th© 

 winter. The thermometers are about 40 feet distant from the 

 main building. 



The rain-gauge is exposed on a lawn east of the main building 

 and about 100 feet from it. There are no obstructions to a free 

 air circulation in the vicinity of the gauge, other than a few orna- 

 mental shrubs 30 or 40 feet distant. 



EASTERN PLATEAU — ORANGE COUNTY. 



Station, Port Jervis — Professor John M. Dolph, Observer. 



Established November, 1S89; special temperature station; equipped with a thermo- 

 graph in December, 1890; latitude, 41 deg. 21 min. north; longitude, 74 deg. 40 min. west; 

 elevation, 470 feet. 



Port Jervis is situated between the Delaware and Neversink 

 rivers, at a short distance north of their point of junction. The 

 valley of the Delaware makes an abrupt turn at this poiat, from 

 the southeast to the southwest, the Neversink river entering from 

 the northeast at the bend. The surface rises gradually toward 

 the 'north in the vicinity of the station, which is about 50 feet 

 above the river surface. But beyond the city limits liigh hills 

 close in abruptly about the valley. 



The thermometers and thermograph are exposed in a louvred 

 sikelter built substantially after the pattern employed by the 

 United States Weather Bureau. The shelter is about 20 feet 

 from the northeastern side of the house, and 3 feet above the 

 ground. 



The rain-gauge is placed upon a post at a 'height of 4 feet 8 inches 

 above the ground, between two low buildings whose roofs rise 

 above the gauge to a height about equal to their distance from it. 



