APPENDIXI.decorated lineTABLE OF HEIGHTS OF VARIOUS POINTS VISITEDDURING THE JOURNEY.(Computed by Dr. Wilhelm Schur.)Duringmy journey I made use of three aneroids, all of which I brought back safe to Europe; they were subsequently most carefully tested under various conditions of temperature and pressure by Dr. Wilhelm Schur, who undertook to estimate and reduce to standard measure the various observations I had made. I here append only the final results of his investigations, but for more complete details I would refer to the Journal of the Geographical Society of Berlin (vol. viii., p.228), where he has described at length his method for ascertaining the proper corrections of my registries, after allowing for the variations from the mean condition of the barometer.I very rarely failed three times in the course of a day to note the readings of the aneroids, but these numerous observations were only entered in my diary, and consequently perished with the rest of my papers in the conflagration of the 2nd of December, 1870; only those observations, therefore, that were made subsequently to that ill-fated-day, and a few others that were sent home promiscuously in my correspondence, were available for Dr. Schur’s deductions.But altogether the following figures will suffice to give very approximately a true conception of the heights of the regions that I visited, and it may be of some interest to compare the results with those obtained during the geometrical survey that is requisite for the formation of the proposed railway between Suakin and Berber.[98]In the approximate heights given below, Dr. Schur has reckoned 25 meters as being equivalent to about 82 English feet.A.—Points between the Red Sea and the Nile on the Roadfrom Suakin to Berber.Height above the sea.Meters.Eng. ft.1Three hours W. of Suakin.212·16952Tamarisk wood, 7½ hours W. of Suakin.544·217853Wady Teekhe, 11½ hours W. of Suakin.618·920304First Attaba (pass), 13 hours W. of Suakin.924·530335At the pools in the valley between the two Attabas.913·529966Second Attaba, highest pass.1041·734157Upper Wady Gabet, below the Attaba.925·830378Singat, summer camp in the great Valley of Okwak.941·330889Wady Sarroweeb, 4 hours E.S.E. of Singat.1037·7340410Wady Harrassa in Erkoweet, 8 hours E.S.E. of Singat, near the summer camp.1137·8373211At the base of the high hill of Erkoweet, on the N. side.1250·2410112Summit of the hill of Erkoweet.1676·15499132 hours W. of Singat, 1 hour from O-Mareg, E. of the small pass.1007·33304143½ hours W. of Singat, W. of the small pass.1072·5351815O-Mareg, summer camp in the valley.971·7318816Small Wady, 3 hours W. of the Mareg, in front of the pass.949·5311517Near the wells in Wady Amet.810·1265818On the S. slope of the W. end of the mountain O-Kurr, 5 hours W. of the wells of Amet.803·3263519Small Wady, an hour W. of Wady Arab.739·9242720Grassy Wady W. of Wady Arab, an hour from the great khor-bed.762·5250121Near the wells in Wady Kamot-Atai.735·3241222Wady 4 hours E. of Wady Habob.705·6231423Wady Dimehadeet.717·5235424Wady Habob, eastern arm.741·0243125Wady Habob, western arm.600·2196926Wady Kokreb, camping-place, 1871.694·5227827Wady Kokreb, camping-place S. of last.597·6196028Great Wady, an hour W. of Wady Kokreb.657·02155295½ hours W. of small isolated hill near Wady Derumkad (Upper Wady Yumga).650·0213230Wady Yumga.587·6192731Wady Derumkad.581·4190732Small isolated hill, an hour W. of Wady Derumkad.578·0189633Valley near the acacias S. of the wells of Roway.590·2193634Below the small pass above the Wady Laemeb.580·1190335End of rising ground in the upper Wady Laemeb.532·8174836In the middle of Wady Laemeb.574·6188537In the middle of Wady Laemeb.513·9168638In the lower Wady Laemeb, 2 hours E. of O-Feek.458·8150539Wady at the foot of the hill O-Feek, southern side.498·61635402 hours E. of the bush-forest at O-Baek.508·2166741O-Baek, bush-forest near the wells.476·3156242Rain-pool, 2 hours W. of O-Baek.459·01506435½ hours W. of O-Baek.438·8143944Wady Eremit, camping place in 1871.464·4152345Wady Eremit, camping place in 1868.446·0146346Depression in Wady Aboo Kolod.399·8131147Wady Darrowreeb or Derreeb.414·0135948Wady Aboo Zelem.452·2148349Pools of Aboo Tagger, 2½ hours E. of Berber (el Mekherif).403·6132450Town of Berber (el Mekherif) 30 feet above the highest level of the Nile.417·01368B.—Points on the Nile between Lat. 9° and 18° N.Height above the sea.Meters.Eng. ft.1Above Wolled Bassal (from the boat).399·713192Town of Matamma (from the boat).404·413263Town of Shendy (from the boat).408·813414Town of Khartoom, 20 feet above the highest level of the Blue Nile.407·213365Meshera, on the island on the Kyt, the extremity of the Bahr-el-Ghazal.442·71452C.—Points in the Bahr-el-Ghazal District.Height above the sea.Meters.Eng. ft.1Ghattas’s chief Seriba in Dyoor-land.471·215452Kurshook Ali’s chief Seriba on the Dyoor.542·117783Agahd’s small Seriba Dubor, in Bongoland.565·518544Aboo Guroon’s small Seriba Danga in Bongoland.543·717835Bizelly’s small Seriba Doggaya-mor in Bongoland.554·518186Idrees Wod Defter’s Seriba in the Golo district.703·623067Seebehr Rahama’s chief Seriba in the Kredy district.696·022828Dehm Gudyoo, Agahd’s Seriba.846·327759On the brook Gulanda between Dehm Gudyoo and Dehm Bekeer.729·1239110Dehm Bekeer, Kurshook Ali’s Seriba.771·0252811Dehm Adlan, Seebehr Adlan’s Seriba the Sehre district.747·1245012Agahd’s small Seriba Ngulfala, in Bongoland.581·0190513Agahd’s small Seriba Moody, in Bongoland.575·0188614Take’s residence in the Dinka country.426·51399D.—Point beyond the Nile District.Height above the sea.Meters.Eng. ft.1Munza’s residence in Monbuttoo-land, Aboo Sammat’s Seriba.825·42707FOOTNOTES:[98]The position of this district with regard to the points of the compass may be seen in the map of the road from Suakin to Berber, which I published invol.XV.of Petermann’s ‘Geographical Communications,’ Table 15. 1869.
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TABLE OF HEIGHTS OF VARIOUS POINTS VISITEDDURING THE JOURNEY.(Computed by Dr. Wilhelm Schur.)
Duringmy journey I made use of three aneroids, all of which I brought back safe to Europe; they were subsequently most carefully tested under various conditions of temperature and pressure by Dr. Wilhelm Schur, who undertook to estimate and reduce to standard measure the various observations I had made. I here append only the final results of his investigations, but for more complete details I would refer to the Journal of the Geographical Society of Berlin (vol. viii., p.228), where he has described at length his method for ascertaining the proper corrections of my registries, after allowing for the variations from the mean condition of the barometer.
I very rarely failed three times in the course of a day to note the readings of the aneroids, but these numerous observations were only entered in my diary, and consequently perished with the rest of my papers in the conflagration of the 2nd of December, 1870; only those observations, therefore, that were made subsequently to that ill-fated-day, and a few others that were sent home promiscuously in my correspondence, were available for Dr. Schur’s deductions.
But altogether the following figures will suffice to give very approximately a true conception of the heights of the regions that I visited, and it may be of some interest to compare the results with those obtained during the geometrical survey that is requisite for the formation of the proposed railway between Suakin and Berber.[98]
In the approximate heights given below, Dr. Schur has reckoned 25 meters as being equivalent to about 82 English feet.
FOOTNOTES:[98]The position of this district with regard to the points of the compass may be seen in the map of the road from Suakin to Berber, which I published invol.XV.of Petermann’s ‘Geographical Communications,’ Table 15. 1869.
[98]The position of this district with regard to the points of the compass may be seen in the map of the road from Suakin to Berber, which I published invol.XV.of Petermann’s ‘Geographical Communications,’ Table 15. 1869.