Direction of the Wind, New Ilauen, Conn. 



2S\ 



much precision ; and tliat no great precision was aimed at is shown by 

 the fact that the winds were oidy recorded for eight points of the 

 compass. There is no donl)t that tlie second series of observations is 

 more reliable than the first, for the directions were estimated to 

 thirty-two points of the compass, and the precise time of each obser- 

 vation was caretuUy stated. 



Table III. — Hourly INIeans. — First Series. 

 Direction of the Wind, New Haven, Conn., 1804-1820. 



Dec. 



M. 

 N. 



57-1 

 63-3 

 63-1 



Ratio of the Wind''s p7'0(/ressive motion in its mean direction to the 

 total distance traveled. New Haven, Conn., 1804-1820. 



Jan. Feb. 



M. 

 N. 

 £!. 



0-492 jO-445 

 |0-409 iO-319 

 l0-469 fo-368 



Mar. 



0-424 

 0-205 

 0-275 



Apr. 



0-336 

 0-088 



May. Jane. 



0-240 

 0-159 



0-215 

 0-309 



0-184 I0-135 0-294 



July. 



0-279 

 0-466 

 0-435 



Ang. 



0-294 

 0-263 

 0-299 



Sept. 



0-436 

 0-169 

 0-277 



Oct. 



0-419 

 0-227 

 0-347 



Nov. 



0-416 

 0-278 

 0-369 



Dec. 



0-481 

 0-428 

 0-477 



Hourly Means. — Second Series. 

 Direction of the Wind, New Haven. Conn., 1844-1852. 



Hatio of the Wind's jwogressive motion in its mean direction to the 

 total distance traveled. New Haven, Conn., 1844-1852. 



Jan. Feb. 



6 A.M. 0-463 



10 



2 P.M. 



6 

 10 



0469 

 0-366 

 0-377 

 0-367 



0-461 

 0-421 

 0-355 

 0-396 

 0-389 



Mar. 



0-440 

 0307 

 0-197 

 0-249 

 0-257 



Apr. 



0-346 

 0-034 

 0-194 

 0-129 

 0-115 



May. 



0-200 

 0-147 

 0-253 

 0-226 

 0-133 



Jane. 



0-214 

 0-140 

 0-412 

 0-359 

 0-319 



Jnly. 



0-210 

 0061 

 0-351 

 0-322 

 0-282 



Ang. 



0-197 

 0-133 

 0-347 

 0-304 

 0-299 



Sept. Oct 



0-369 

 0-328 

 0-076 

 0-070 

 0-043 



0-475 

 0-340 

 0-052 

 0063 

 0-094 



Nov. 



0-468 

 0-424 

 0-278 

 0-272 

 0-294 



Dec. 



0-546 

 0-494 

 0-473 

 0-446 

 0-417 



In order to present the results of the second series of observations 

 palpably to the eye, the curves shown on Plate XI have been drawn 

 upon the same principle as those given on Plate VIII to represent the 

 observations at Wallingford, Conn. These curves were constructed 

 in the following manner: The wind's mean direction for January at 



