The observations at this place were recorded originally for 16 points of the compass, but were reduced to eight by Mr. Wesselowski, who distributed those from the intervening points equally between the two on either side. He also further modified the record by expressing the number of observations in parts of 10,000. As his communication does not show in what months or seasons of the year the omissions of the 396 days (as already mentioned) occurred, the column headed "number of days" is filled on the assumption that they were distributed uniformly over the entire period.

2 Observed from the magnetic meridian, and in computing the direction of the resultants an allowance of 30° 30' is made for the variation of the needle.

Fort Enterprise, by Sir John Franklin, from September 1st, 1820, to August 31st, 1821, but published in extenso only from January 12th to May 9th, 1821. .

Fort Norman, by Andrew Flett, for five months of 1862 and 1863.

Fort Rae, Great Slave Lake, by Lawrence Clarke, Jr., 1859-60; and by Mrs. Lawrence Clarke, Jr., 1861-64.

Fort Reliance, Great Slave Lake, by Capt. Back, from November 1st, 1833, till May 23d, 1834, and during part of October, 1834.

Fort Simpson, by Capt. Lefroy 18 times a day during the months of April and May (date not preserved), and by Bernard R. Ross for 17 months in the years 1859, 1861 and 1862.

87

90

In the published abstracts for the entire year the winds are classified merely as easterly or westerly, as follows:

Jan. Feb. March. April. May. June. July. Aug. Sept. Oct. Nov. Dec.

Total.

It appears from the foregoing that the preponderance of easterly winds over westerly amounts to more than 17 per cent. of the whole. And if, with a view to obtain some tolerable approximation to the probable mean direction of the summer and autumn winds, and hence that for the entire year, we distribute each of the two foregoing classes of winds among the several easterly or westerly points, in the same ratio that they actually were distributed in the recorded observations of some month in which the general result was nearly or quite similar, we obtain the following:

January
February
March

April

May
October

November 3

December 13

Spring
Autumn
Winter

B&B woo North.

N. N. E.

14

0

5

20

0

3

0

30

5

E. N. E.

12

12

27

18

(No. 12.)

Baffin's Bay and Hudson's Strait. Longitude 45° to 80° W. Computed from observations made by John Ross for 12 days in the spring, summer, and autumn of 1818; by Parry, for 81 days in the same seasons for 1819 to 1825; by Snow, for 6 days in the summer and autumn of 1850; by Kane, for 15 days in the summers of 1850 and 1853; and by McClintock for 28 days in the spring, summer, and autumn of 1857, 1858, and 1859, as follows::Spring: North 14, N. N. E. 2, N. E. 1, E. N. E. 1, E. S. E. 5, S. E. 12, S. S. W. 4, W. S. W. 5, W.N.W. 1, N. W. 7, N. N. W. 18; calm 2.

Direction of resultant, N. 8° 28′ W.??
Ratio of resultant to sum of winds, .32.
Number of days, 13.

Summer; North 72, N. N. E. 25, N. E. 30, East 56, S. E. 49, S. S. E. 20, South 35, S. S. W. 30, S. W. 44, W. S. W. 28, West 36, W. N. W. 15, N. W. 55, N. N. W. 36; calm 22. Direction of resultant, N. 48° 56′ W. Ratio of resultant to sum of winds, .01. Number of days, 93.

Autumn North 16, N. N. E. 10, N. E. 24, E. N. E. 3, East 11, E. S. E. 4, S. E. 12, S. S. E. 3, South 11, S. S. W. 15, S. W. 6, W. S. W. 3, West 18, W. N. W. 16, N. W. 33, N. N. W. 24; calm or variable, 7.

17.
Reikiavik,
1823-36.3

Observed at the following places, viz. :

Bessested, by N. Horrebow, in the years 1849, 1850 and 1851.

Reikiavik, by Gladstone and Park, from May 1st to November 20th, 1813; by Dr. Thorstensenius (or in his absence by Capt. Vidalenus), from 1822 to 1836 inclusive;' by the French Commission at Reikiavik, and the waters adjacent, for 36 days in the spring of 1840; and by Rev. S. O. Pallsen for an aggregate period of 17 months in the years 1866, 1867 and 1868.

January
February
March

4.22 5.15 5.29 3.21 2.43 5.15 0.43 1.46 3.43 N. 87 15 E. .20
4.00 5.29 4.50 3.07 1.71 5.64 0.35 0.93 2.43 N. 83 9 E..20
4.65 4.29 4.93 3.57, 2.51 5.36 0.50 1.79 3.21 N. 86 57 E. .16
April
6.07 4.22 3.79 4.15 1.86 4.64 0.07 2.43 2.21 N. 60 11 E. .19
May
4.72 4.00 5.35 5.21 2.28 2.71 1.00 2.06 3.43 N. 80 7 E. .25
June
5.36 2.14 3.07 3.22 2.36 2.93 2.14 5.21 3.57 N. 14 34 W..13
July
5.35 1.01 2.99 3.08 2.43 3.35 1.71 4.85 5.93 N. 29 44 W..12
August 4.79 2.00 5.65 2.78 3.00 2.64 1.43 3.78 4.43 N. 52 47 E. .12
September 5.72 3.28 6.50 2.71 2.00 2.58 0.78 2.58 3.57 N. 63 47 E. .24
October 8.00 4.86 5.78 1.64 1.57 4.29 0.99 1.21 2.43 N. 42 2 E. .27
November 7.28 3.43 6.65 2.14 1.93 3.57 0.64 1.00 3.22 N. 57 25 E. .27
December 5.00 4.93 6.22 1.86 1.65 6.50 0.79 0.85 2.86 N. 72 52 E. .17
Spring 15.44 12.51 14.07 12.93 6.65 12.71 1.57 6.28 8.85 N. 75 30 E. .19
Summer 15.50 5.15 11.71 9.08 7.79 8.92 5.28 13.84 13.93 N. 4 39 E. .10
Autumn 21.00 11.57 18.93 6.49 5.50 10.14 2.41 4.79 9.22 N. 50 39 E. .26
Winter 13.22 15.37 16.01 8.14 5.79 17.29 1.57 3.24 8.72 N. 80 53 E. .19
The year 65.16 44.60 60.72 36.64 25.73 49.36 10.83 28.15 40.72 N. 59 21 E. .17

Spring

32

96

233 215 230 210 106 191 152 N. 77 54 E..21 S. 59 E. .06 Summer 245 94 180 178 136 149 88 213 241 N. 16 38 E. .063 S. 85 W..14 Autumn 326 181 292 120 92 155 41 77 145 N. 53 30 E. .26 N. 34 E..10 Winter 201 251 248 126 84 270 261 47 147 N. 79 47 E. .19 S. 41 E. .05 The year 1005 741 950 634 418 765 187 433 685 N. 64 17 E. .17

1 The earlier observations were made at the village of Raes near Reikiavik.

2 Computed from the resultants for the seasons.

3 The resultants are those computed by Prof. S. Holmsted, modified by the effect of calms.

(No. 20.)

Atlantic Ocean.

Longitude 35° W. to 10° E.

Computed from observations made by John Ross for 16 days in the autumn of 1818; by the French Commission for 84 days in the summer and autumn of 1838, 1839 and 1840; by Snow for 3 days in 1850; and by McClintock for 7 days in 1857, as follows:

Summer North 31, N. N. E. 54, N. E. 51, E. N. E. 86, East 111, E. S. E. 79, S. E. 44, S. S. E. 6, South 48, S. S. W. 21, S W. 20, W. S. W. 32, West 75, W. N. W. 42, N. W. 37, N. N. W. 26; ealm or variable, 72 (?).