Addendum to Zone No. 16. (24(b).) Observations at Gorée, Cape Verde, by Dr. Borius, 1856-65. In days. Total number 4610 25 15 11 4610 12 4605 4510 41 17335 (49.) Observations on the Indian Ocean, calculated at the Meteorological Institute of the Netherlands, under Capt. Corneilissen's direction. The data for the study of the winds of this zone consist of observations made at over 16 stations on land, for an aggregate period of 27 years; at sea for over 40 years 6 months. The distribution is as follows: North. N. N. E. Pacific Ocean, oast of longitude 1802. Computed from observations for an aggregate period of 3985 days, collected and classified from the logs of different sailing vessels, at the United States Naval Observatory, under the direction of Capt. M. F. Maury, Superintendent, as follows, viz. :— RELATIVE PREVALENCE OF WINDS FROM THE DIFFERENT POINTS OF THE COMPASS. Monsoon influences. to sum of winds. Ratio of resultant Number of days. 0 32 12 18 2 24 34 25 3 25 9 2 9 13. 74 20 88 20 22 3. Long. 1252 to 130° W. 4. Long. 120° to 125° W. 5. Long. 115° to 120 W. 6. Long. 110' to 115° W. 7. Long. 105°. to 110° W. 8. Long. 100° to 105 W. 9. Long. 90° to 100° W. 10. Long. 75° to 90° W. Spring Winter Spring Winter Spring Winter Autumn Winter Autumn Winter Summer Autumn Winter Autumn Winter The year! 6 31 3 13 12 11 0 19 0 22 20 19 21 52 79 19 31 17 50 0 3 10 15 3 14 13 17 39; 36 12 10, ... 13 5 9 14 29 29 22 23 1 23 11, 27 12 10 0 21 25 40 25 50 19 49 13 0 ... 29 6 19 3 22 0 14 1 14 22 44 17 0 16 28 48 8 15 4 58 44 65 15 40 6 0 ... 3147 69 29 11 17 11 36 10 0 0 6 24 3 17 0 2 42 46 40 15 8 12 13 3 64 0 8 36 27 32 7 24 5 2 S. 21 26 E. 32 N. 85 14 E. .53 8 S. 29 34 E. .47 0 S. 0 44 W. .77 229 41 11 S. 0 50 E. S. 43 33 E. .32 N. 21 E. .26 72 0. 33 N. 71 9 E. .60 ... ... San José, by C. N. Riotte and others, for an aggregate period of over three years in the years 1862 and 1864 to 1868 inclusive. Aspinwall, by William T. White, J. P. Klugé and G. A. Rucker, for an aggregate period of 71 months in the years 1862 to 1868 inclusive. Caledonia Bay, by Capt. John Parsons, on board the ship Scorpion, from January 24, to March 16, 1854. Chagres, by Cobb, during the month of July. Manzanilla, during June to October inclusive in the year 1851. Panama, by M. B. Halsted, during 27 days of the month of September, 1853. Observed at the following places, and reported, for the most part, to the Smithsonian Institution. Catharina Sophia, Surinam, by C. J. Hering, from February, 1856, to December, 1858, inclusive. Georgetown, British Guiana, by Robert II. Schomburgk, during the years 1850, 1851, 1854, 1855, and 1856. Our Village (near Mount Roraima), British Guiana, by Robert H. Schomburgk, from October 29 to November 16, nineteen days. Rustenberg Plantation, Surinam, by C. J. Hering, from April, 1861. (Nos. 25 to 32.) Atlantic Ocean. Computed from observations for an aggregate period of over 9 years, collected and classified, from the logs of numerous sailing vessels, at the United States Naval Observatory, under the direction of Capt. M F. Maury, Superintendent. RELATIVE PREVALENCE OF WINDS FROM THE DIFFERENT POINTS OF THE COMPASS. Monsoon influences. Spring Winter 0 21 152 43 9 14 10 16' 7. 15 13 6 11 145 35 20 6 9 27 36 13 3 ... 6 8 3 19 26 20 0 1 24 926 5 16 1 1 0 21 11 22 46 16 17 5 0400 1 2 10 6 ... 14, 18, 12: 1 4 3 7 0 S. S. E. South. W. S. W. West. W. N. W. N. W. N. N. W. variable. Caim or 0 N. 53° 39' E. 8 N. 81 33 E. 0 N. 50 29 E. ... 2 N. 53 29 E. July ... S. 18 9 W. .31 N. W. .05 12 W. .16 118 829 7, 1s 20 N. 44 17 19 N. 47 5 E. .65 N. 18 E. .43)| 152 N. 20 E. .49 182 14 6' 17 10. 6 17 N. 35 E. .41 198 8 12 21 31 88 S. 89 1 E. Observed at Bassa Cove, during the autumn of 1839, as follows: North 8, East 6, S. E. 2, South 7, S. S. W. 33, S. W. 151, West 22, N. W. 4. Direction of resultant S. 49° 6' W. (?) Ratio of resultant to sum of winds .84. |