Appendix

I.

METEORLOGICAL

Instruments used for altitudes:--

Pocket aneroid, corrected +0.55, "R.G.S"

Casella's Alpine Sympiesometer, corrected to 67 (F.).

N.B.-- Returning to Fernando Po, found that part of the liquid has lodged in upper bulb, and therefore corrected index error by standard aneroid 1.15 (Symp. = 29.258, and standard, 30.400).

Observations at the Congo mouth in February, 1863 (from log of H.M.S. "Griffon").

Thermometer Barometer Winds Place

Engine in sea. Force & Direction

Room. A.M. P.M.

86 76 29.90 (1) S.E. (1) N.N.W. Loanda.

92 77 29.92 (1) S.W. (2) W.N.W. En route to Congo.

108 76 29.90 (1) S. (3) S.S.W. En route to Congo.

86 78 29.90 (2) S. (3) W. En route to Congo.

88 78 29.90 (2) S.W. (2) S.S.W. En route to Congo.

94 80 29.90 (2) S.E. (2) S.W. En route to Congo.

90 83 29.90 (2) S. (2-3)S. Congo.

90 80 29.90 (0) Calm (1) W. Congo.

(Signed) F. F. Flynne,

Assistant-Surgeon in Charge.

Place and Date. Time of Day. Thermometer. Symp. Remarks.

9th September 6 a.m. 65 28.00 cor. 29.12 Cold morning, light wind from N.N.E.,

Banza nokki 9 a.m. 72 27.70 cor. 28.82 threatened rain, 8 a.m.; noon misty,

on hills above Noon. 78 27.90 cor. 29.02 day hazy; 3 p.m., sun hot, wind cooler

river 3 p.m. 80.5 27.85 cor. 28.97 from west; evening, stiff sea-breeze,

6 p.m. 72 27.90 cor. 29.02 people complain of cold; night, heavy dew.

10th Sept. 6 a.m. 67 27.90 cor. 29.02 Misty morning, warm at 9 a.m., wind; noon,

Same place, 9 a.m. 75 27.75 cor. 28.87 hot sun, high sea-breeze; 3 p.m., hot

Nokki. Noon. 83 27.85 cor. 28.97 sun, cool west wind; cloudy evening;

3 p.m. 85 27.75 cor. 28.87 windy night, dew cold and heavy.

6 p.m. 74 27.85 cor. 28.97

Altitude of Nokki above sea, 1,430 feet.

11th Sept. 9 a.m. 77 27.70 cor. 28.82 Misty morning, warm but clouding over;

Banza Noon. 87 27.55 cor. 28.67 at noon high sea-breeze, glare and hot

Chingufu 3 p.m. 83 27.45 cor. 28.57 sun, when clouds break 97 in sun,

above Nokki; 6 p.m. 73 27.50 cor. 28.62 2 p.m.; 3 p.m., high sea-breeze up

see also 18th river; 6 p.m., cold sea-breeze, cloudy

and 19th Sept. sky.

Altitude of Chingufu, 1,703 feet.

Chingufu

12th Sept. 6 a.m. 65 27.70 cor. 28.82 Clear fine morning; high west wind

First observation Nekolo. at 6 a.m.; pocket aneroid 29.00

Chingufu, 9 a.m. 76 28.50 cor. 29.62 Shady verandah facing to west; at

others at Nekolo Noon. 84 28.35 cor. 29.47 noon aneroid 30.05; 3 p.m., hot

lower down & near 3 p.m. 85 28.40 cor. 29.52 sun, westerly breeze, few clouds;

river. 6 p.m. 77 28.30 cor. 29.42 6 p.m., very clear, east wind

strong; no dew at night.

Negolo Nkulu.

13th Sept. 6 a.m. 70 28.45 cor. 29.57 Close cloudy morning; 9 a.m.,

Negolo and near 9 a.m. 77 28.50 cor. 29.62 alternately clear and cloudy,

Congo River. Noon. 90 28.45 cor. 29.57 glare, no wind; noon bright and

sultry, no clouds; 3 p.m., in

shady cove 10 feet above river;

rain at 5.30 p.m., lasted two

hours; dispersed by westerly

breeze.

Cove near river.

3 p.m. 94 29.10 cor. 30.22

Height of Negolo, 828 feet.

Left bank.

14th Sept 6 a.m. 74 29.30 cor. 30.50 Dull, warm, and cloudy.

Right bank.

Banza Vivi on 9 a.m. 84 29.35 cor. 30.57 Aneroid 30.60, dull day.

hills above right Noon. 80 28.95 cor. 30.07 Anerodi 30.10 dull day, very little

bank. 3 p.m. 84 28.35 cor. 29.47 breeze, village shut in, clouds

6 p.m. 79 28.85 cor. 29.97 from west.

Banza Vivi.

15th Sept. 6 a.m. 74 29.15 cor. 30.25 Thick drizzle from west, no wind.

At Banza Simbo, half way up Vivi range, aneroid 29.42.

Banza Nkulu Noon 78 28.10 cor. 29.22 Under tree facing north; puffs of

above rapids. west wind, threatened rain, none

came.

6 p.m. 75 28.10 cor. 29.22 In veranda facing north-east; clear

night, heavy dew.

Banza Nkulu.

16th Sept. 6 a.m. 69 28.20 cor. 29.32 Grass wet, heavy dew, rain

threatened, aneroid 29.50.

100 feet above rapids.

7.30 a.m. 73 29.25 cor. 30.37 Aneroid 30.55.

Banza Nkulu again Noon. 80 28.10 cor. 29.22 Aneroid 29.55, dull, cloudy, rain

threatened.

3 p.m. 75 28.00 cor. 29.12 Dull day, clearer towards evening,

6 p.m. 75 28.00 cor. 29.12 very heavy dew.

Altitude of Nkulu, 1212 feet.

Altitude of Yellala Rapids, 390 feet.

Nkulu.

17th Sept. 5.30 a.m. 67 28.15 cor. 29.27 Grey, cool; threatens sunny day.

Right bank of river.

9.20 a.m. 77 29.30 cor. 30.42 Cool west wind.

In canoe on river below Little Rapids.

10.50 a.m. 81 20.20 cor. 30.32 Aneroid 30.57(59)

Left bank 20 feet above water, under fig-tree facing north.

Noon. 81 29.20 cor. 30.32 Aneroid 30.50.

Negolo Town 3 p.m. 83 28.30 cor. 29.42 Day hot, aneroid in verandah 30.50.

Banza Chingufu.

6 p.m. 71 27.55 cor. 28.67 Clear evening, misty towards night,

young moon with halo.

Height of river below Vivi Fall, 195 feet.

18th Sept. 6 a.m. 65 27.60 cor. 28.72 Cool, grey, no wind.

At Chingufu as 9 a.m. 76 27.65 cor. 28.77 Strong land wind, from east, no

before. sun, heavy clouds N.E.

Noon. 90 27.50 cor. 28.62 High west wind, hot sun.

3.30 p.m. 88 27.35 cor. 28.47 Clear at 1 p.m., thermometer 100

little wind, sun hot.

6 p.m. 77 27.45 cor. 28.57 Clear evening, no dew, misty moon,

high sea-breeze at night.

19th Sept. 6 a.m. 67 27.70 cor. 28.82 Still grey morning, no wind.

At Chingufu. 9.30 a.m. 76 27.65 cor. 28.77 Lighter, wind from west.

Noon. 81 27.60 cor. 28.72 Dull, light west wind.

3 p.m. 88 27.45 cor. 28.57 Cloudy and sunny, west wind.

6 p.m. 72 27.50 cor. 28.62 Clear, fine, little wind.

How do these agree with September 11?

Chingufu.

20th Sept. 6 a.m. 69 27.70 cor. 28.82 Fine, clear, and still morning.

On river.

Down river 9 a.m. 82 29.35 cor. 30.47 Hot day, aneroid 30.55; at 10 a.m.

29.85.

Off Chacha village on river.

Noon. 87 29.35 cor. 30.47 Sea-breeze, sun hot, but obscured

by smoke of bush fires.

On river.

3 p.m. 86 29.20 cor. 30.32 Aneroid 30.40, stiff sea breeze.

Last observation taken about 5 miles above Boma.

21 Sept. 9 a.m. 76 29.30 cor. 30.42 Cool, cloudy, pleasant.

At Boma. Noon. 81.5 29.25 cor. 30.37 Dull, threatens rain.

3 p.m. 86 29.25 cor. 30.37 Dull, muggy, cloudy.

22nd Sept. 6 a.m. 77 29.10 cor. 30.22 Dull, cloudy, cool; instrument in

Boma. verandah facing south-west.

9 a.m. 76 20.30 cor. 30.42

Noon. 84 29.30 cor. 30.42 Dull and warm.

3 p.m. 84 29.10 cor. 30.22 Very dull, strong sea-breeze comes

up in afternoon, and lasts till

9 p.m.

6 p.m. 79 29.20 cor. 30.32 Dull night.

Mean altitude of Boma (commonly called Embomma), 73 feet.

23rd Sept. 6 a.m. 70.5 29.20 cor. 30.32 Dull morning

Boma. 9 a.m. 81.75 29.25 cor. 30.37 Clear and sunny.

3 p.m. 92 29.10 cor. 30.22 Clear, hot, and sunny.

6 p.m. 79 29.15 cor. 30.27 High wind, sun.

24th Sept. 6 a.m. 74 29.20 cor. 30.32 Cool and clear.

Boma. 9 a.m. 81 29.30 cor. 30.42 Hot and clear.

12.30 p.m. 93.75 29.10 cor. 30.22 Hot and clear.

3 p.m. 93.57 29.05 cor. 30.17 Very strong sea-breeze till late at

night.

6 p.m. 79.5 29.15 cor. 30.27 Very strong sea-breeze till late at

night.

25th Sept. 6 a.m. 74 29.20 cor. 30.32 Dull, no sun, rain threatened.

Noon. 81 29.20 cor. 30.32

3 p.m. 83 29.19 cor. 30.31 Aneroid 30.15.

6 p.m. 78 29.10 cor. 30.22 Dull, no sun, wind subsided at

night.

Porto da Senha at factory.

26th Sept. 6 a.m. 78 29.25 cor. 30.37 Aneroid 30.62, day clear.

9 a.m. 76 29.30 cor. 30.42 Aneroid 30.40, hot sun.

On passage in canoe down river.

Noon. 87 29.20 cor. 30.32 Aneroid 30.45.

3 p.m. 95.5 29.00 cor. 30.12 Aneroid 30.52.

Mean altitude of Porto da Lenha, 38 feet.

28th Sept. 6 a.m. 71.25 29.15 cor. 30.27 Dry, cloudy morning.

Banana factory, 9 a.m. 75 29.20 cor. 30.32 Calm, land and sea breezes very

mouth of river, regular.

60 feet above Noon. 81 29.10 cor. 30.22 At noon thermometer at seaside in

sea level. sun (overcast) 83.5.

3 p.m. 75.5 29.05 cor. 30.17

6 p.m. 74 29.05 cor. 30.17 Symp. (corrected) 30.32.

29th Sept. 6 a.m. 73 29.20 cor. 30.32 Weather calm; at seaside in sun

same place. 9 a.m. 80 29.20 cor. 30.32 (overcast) thermometer 74.5.

Noon. 83 29.10 cor. 30.22

3 p.m. 80 29.15 cor. 30.27 Symp. (corrected) 30.32.

6 p.m. 74 29.05 cor. 30.17 Night cold and windy.

30th Sept. 6 a.m. 71 29.20 cor. 30.32 Clear weather, high wind.

same place. 9 a.m. 79 29.15 cor. 30.27




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