VI. On the Dikectiox and Fokce of the Wind, with the Fall 

 OF Rain and Snow, at Wallingfoed, Connecticut, fkom Ob- 

 servations MADE Bv Benjamin F. Harrison, M.D., and reduced 

 BY Francis E. Loomis, Ph.D. 



Read Jan. 18th, 1871. 



The observations described in the following Article were made at 

 Wallingford, Conn., a town situated about twelve miles north of New 

 Haven, in lat. 41° 29' N., long. 4'> Slf"^ W. of Greenwich. The appa- 

 ratus employed in the observations was located on or in the immediate 

 vicinity of Dr. Harrison's house, which is situated on a ridge of land 

 extending nearly north and south, with a valley on the west. The ele- 

 vation of the house above this valley is about VO feet, and its elevation 

 above the sea is about 130 feet. Both on the east and west sides of 

 the valley is a moderate range of hills extending nearly north and 

 south. In order to indicate to what extent these hills obstruct the 

 horizon of Dr. Harrison's house, the angular elevation of the most 

 prominent points was measured with a small graduated quadrant fur- 

 nished with a plumb line, and the following is the result : — 



Within about one hundred feet of the house on the south side, is a 

 small church, but the ridge of the roof is less elevated than the vane 

 and anemometer. These facts indicate that the vane employed in the 

 following observations had a pretty fair exposure, and it is inferred that 

 the direction of the wind was not greatly influenced by the neighbor- 

 ing inequalities of the earth's surface. « 



Direction of the Wind. 

 The direction of the wind was measured by a self-recording vane 

 having a general resemblance to that employed by Dr. Charles Small- 

 wood,* of Montreal, but with some modifications by Dr. Harrison. 



* A description of Dr. Small wood's meteorological observatory and apparatus is 

 contained in the Smithsonian Report for 1856, p. 311. 

 Tbans. Connecticut Acad., Vol. II, Part 2. 13 Jan., 187]. 



