At Sierra Leone, the maximum observation in 1820 was 84°; the medium, 80°; and minimum, 78°.

The weather was unusually fine,—rather hot and sultry. The wind was from S.W. to N.W. The rains were heavy, but not very frequent.

ACCRA, GOLD COAST.
August 1860.

MAXIMUM OBSERVATIONS.-Morning-3rd, 4th, and 5th, 76°; 12th, 75°. Noon-1st and 2nd, 83°. Evening-4th, 78°; 1st, 77°.

MEDIUM OBSERVATIONS.—Morning—10th, 20th, and 29th, 74°40. Noon-4th, 15th, and 19th, 79°. Evening-3rd, 7th, 19th, 25th, and 26th, 75°.

MINIMUM OBSERVATIONS.-Morning-30th and 31st, 73°. Noon29th, 74°. Evening-29th and 31st, 73°.

Remarks.-The observations of this month were rather incomplete, from unavoidable circumstances. It was foggy on the night of the 3rd. Very cloudy during the whole of the month. It rained for fifteen days, including the night, sometimes very heavy. Very misty in the evening and night of the 30th.

RIVER GAMBIA.

August 1864.

MAXIMUM OBSERVATIONS.-Morning-8th and 20th, 83°; 4th, 82°. Noon-2nd, 91°; 3rd, 21st, and 31st, 90°. Evening-2nd, 92°; 3rd, 22nd, and 31st, 91°.

MEDIUM OBSERVATIONS.-Morning-3rd, 7th, 9th, 10th, 14th, 18th, 19th, 22nd, 23rd, and 31st, 79°. Noon-6th, 15th, and 18th, 87°. Evening-7th, 87°; 30th, 86°.

MINIMUM OBSERVATIONS.— Morning-28th, 75°. Noon — 14th, 83°. Evening-10th and 20th, 78°.

Remarks. Tornado on the 1st, 10th, 17th (3 A.M.), and 31st. Fine on the 2nd, 3rd, 18th, 19th, 26th, 29th, 30th, and 31st; rained heavily the rest of the month. The wind was principally from S.W. to N.; on the 30th and 31st was N.E.

August 1865.

MAXIMUM OBSERVATIONS.-Morning-23rd, 83°; 16th, 82°. Noon -23rd, 90°; 15th, 89°. Evening-15th, 92°; 14th and 16th, 91°. MEDIUM OBSERVATIONS.-Morning-2nd, 9th, 17th, and 28th, 80°; 4th, 5th, 6th, 8th, 11th, 12th, 13th, 21st, 24th, 25th, 26th, and 29th, 79°. Noon-27th, 84°. Evening-7th, 85°; 18th and 27th, 84°.

MINIMUM OBSERVATIONS.-Morning-31st, 76°. Noon - 10th, 78°. Evening-30th, 79°.

Remarks.-Rained on the 4th, 5th, 6th, 7th, 8th, 10th, 11th, 12th, 16th, 17th, 18th, 19th, 20th, 23rd, 24th, 25th, 26th, 27th, and 30th. Tornado on the 30th, at 11 A.M. Thundered on the 11th. Cloudy on 1st, 2nd, 3rd, 9th, 13th, 14th, 15th, 21st, 22nd, 28th, and 29th. The average morning thermal register was 79°.45; afternoon, 85°.54; evening, 87°-6. The monthly mean was 83°-258.

THERMOMETRICAL OBSERVATIONS FOR 1862, 1863, 1864, 1865. RIVER GAMBIA.

In August 1820, at Freetown, Sierra Leone, the maximum thermometer was 82°; medium, 80°; minimum, 75°. There were very heavy rains during the month; some days were sultry and hot.

SIERRA LEONE.
August 1860.

Maximum and Minimum Thermometers.

HIGHEST MAXIMUM OBSERVATIONS.—At 9 A. M.-On 1st, 2nd, 3rd, 4th, 5th, and 9th, 78°. At 9 P.M.-On 17th, 83°; on 3rd, 4th, 15th, and 25th, 82°.

LOWEST MAXIMUM OBSERVATIONS.-At 9 A.M.- -On 18th, 74°. At 9 P.M.-On 7th, 10th, 23rd, and 31st, 76°.5.

HIGHEST MINIMUM OBSERVATIONS.-At 9 A. M.-On the 17th, 76°; 16th, 75°. At 9 P.M.-On the 16th, 77°; 13th, 21st, and 22nd, 76°. LOWEST MINIMUM OBSERVATIONS.-At 9 A.M.-On the 18th and 24th, 71°. At 9 P.M.-31st, 71°.5.

Dry and Wet Bulb Thermometers.

MAXIMUM DRY BULB OBSERVATIONS.- -At 9 A.M.-4th, 17th, and 25th, 79°; 9th, 78°. At 9 P.M.-3rd, 4th, 15th, and 16th, 77°; 2nd and 24th, 76°.5.

MINIMUM DRY BULB OBSERVATIONS.-At 9 A.M.-18th, 73°. At 9 P.M.-31st, 71°.5.

MAXIMUM WET BULB OBSERVATIONS.-At 9 A.M.-17th, 76°; 2nd, 3rd, and 19th, 75°. At 9 P.M.-2nd, 74°-5; 3rd, 74°.

MINIMUM WET BULB OBSERVATIONS.-At 9 A.M.-15th, 18th, 20th, and 28th, 71°. At 9 P.M.-17th, 28th, 29th, and 31st, 70°.

CHRISTIANSBORG, GOLD COAST.

September 1860.

MAXIMUM OBSERVATIONS.-Morning-23rd, 28th, and 29th, 76°; 6th, 11th, 24th, 26th, and 27th, 75°. Noon-25th and 29th, 79°; 22nd, 23rd, 26th, and 28th, 78°. Evening-24th, 26th, and 29th, 76°.

MEDIUM OBSERVATIONS.-Morning-7th, 13th, 16th, and 18th, 74°. Noon-5th, 77°.30. Evening-12th, 73°.

MINIMUM OBSERVATIONS.-Morning-12th, 15th, and 17th, 72°.. Noon-4th, 74°. Evening-12th, 72°.

Remarks.-Lightning on the 10th, N. and N.E.; 17th, W.N.W.; 18th, N.N.W.; 24th, W. to N.W.; 27th, N.E.; 28th, W.N.W. Thundered on the afternoon of the 23rd, N.N.E., and zenith. Wind, W. and S. W. most prevalent; on the 3rd, W. all day; 5th, W. in morning, S. W. by W. afterwards; 6th, morning, S.W. by W.; 7th, very still morning-afternoon, strong S.; 8th, N.W.; 9th, N.E. Drizzled at noon on 1st; in the morning of the 22nd and 27th. Morning and evening of the 15th and 20th very foggy; and evening of the 19th.

RIVER GAMBIA.

September 1864.

MAXIMUM OBSERVATIONS.-Morning-15th, 81°·5; 3rd, 5th, 7th, 9th, and 18th, 81°. Noon-5th, 92°; 15th, 91°. Evening-5th, 93°; 9th and 10th, 92°.

MEDIUM OBSERVATIONS.-Morning-2nd, 4th, 11th, 16th, 17th, and 30th, 78°. Noon-2nd, 19th, 21st, 25th, and 26th, 89°. Evening-17th, 23rd, and 26th, 89°.

MINIMUM OBSERVATIONS.-Morning-24th, 75°. Noon-12th and 29th, 85°. Evening-12th, 16th, and 30th, 86°.

Remarks.-Heavy tornado on the 5th, 11th, 15th, and 22nd. Rained, 8th, 12th, 17th, 21st, 24th, and 27th. The days were generally fine. The prevailing wind S.W.; on the 27th, N.E.

September 1865.

MAXIMUM OBSERVATIONS.-Morning-3rd, 4th, 21st, and 30th, 83°; 23rd and 29th, 82°. Noon-26th, 29th, and 30th, 90°; 3rd and 21st, 89°. Evening-30th, 94°; 3rd, 13th, 20th, 21st, 26th, and 29th, 92°.