130 



Land Magnetic Observations, 1911-13 



AFRICA. 



Algeria. 



Ain Sefra, Ain Sefra, 1912. About 1 kilometer west of 

 town, near .Vrab cemetery, about 200 meters east of 

 ^larabout of Sidi Boujema, 200 meters north of Oued 

 .\in Sefra, 27.5 meters west of northwest corner of 

 .\jab cemetery, and 30 meters northwest of southwest 

 corner; marked by wooden peg driven flush with 

 ground. True bearings: dome of Marabout of Sidi 

 Boujema, 56 4S'.8; cro.ss on church in Ain Sefra, 242 

 59'. 8; lone dome on building in military quarters, 267 

 Ol'.S. 



Algiers, Algiers, 1912. Intercomparison observations at 

 the Bouzareah Observatoire d 'Alger were made at the 

 Moureaux station, designated M, and on pier desig- 

 nated 0. M is on leveled space on hillside about 150 

 meters west of observatory grounds and about 100 

 meters south of group of three Arab houses built of 

 rough stone; marked by tack in top of round wooden 

 peg. True bearings: ornament on equatorial coude, 

 261 26'.S; Dome de Kouba, 6 kilometers, 322 46'.7; 

 monument to African soldiers, 2 kilometers, 330 26'. 8. 

 U is pier in northwest part of observatorj' grounds, near 

 grove of pines and about 60 meters distant from near- 

 est building; the pier is a stone slab set in cement floor 

 and surmounted by marble slab for instruments and 

 covered with wooden shed. True bearing: Matifou 

 lighthouse, 265 28'.5. 



Algiers, A/2, Algiers, 1912. The station established by 

 Mr. F. Haldet, of the Algiers Observatory, in January, 

 1912, was reoccupied; on first rising ground west of 

 observatory, 99.5 feet (30.33 meters) northwest of 

 well, 66 feet (20.1 meters) south of lone fig tree, about 

 200 feet (61 meters) east of grove of cultivated pine 

 trees, about 60 meters southwest of southwest corner of 

 Arab's house with flat roof, about 400 feet (122 meters) 

 northwest of Arab's house with dome, and 6 feet (1.8 

 meters) west of abrupt slope; marked by wooden peg 

 driven flush with ground. "True bearings: Dome de 

 Kouba, 322 28'. 6; monument to African soldiers, 329 

 31'.6. 



Bedeau, Oran, 1912. North of village, three-quarters kilo- 

 meter west of railroad, 34.5 meters south and 31 meters 

 southwest respectively from west and south corners 

 of cemetery wall; marked by wooden peg driven into 

 soft stone. True bearings: vane on large white build- 

 ing in Bedeau, 8 02'.2; cross on church in Bedeau, 

 359 44'.0. 



Beni-Ounif , Ain Sefra, 1912. About three-quarters kilo- 

 meter southwest of railroad station, in shallow wadi 

 southwest of \'illage, 200 meters west of stunted palm 

 grove, 41.2 meters west of southwest corner of entrance 

 of ruined mud brick building supposed to be sheepfold; 

 marked by wooden peg driven flush with ground. 

 True bearings: dome of Marabout of Sidi Sliman, 

 232 27'. 5; flagstaff on commandant's residence near 

 railroad station, 246 29'. 5. 



Blxhra, Constantine, 1911. On east bank of dry water- 

 coui'se called Oued Biskra, south of native village 

 Lallia and in range with Marabout Sidi Zafzour 

 and ruins of what appears to be old bridge pier; 82 

 jiaces south of southeast end of native cemetery, 9.5 

 meters east of bank of Oued Biskra, 5 meters east- 

 northeast of washout which is used by natives for 

 descending into Oued Biskra, and 140 paces south- 

 we.st of culvert which carries road over an irrigation 

 ditch. True bearings: dome of Palais de Justice, 

 133 32'.8; tower on Hotel Royal, 137 30'.6. 



liiiiigie, Constanline, 1911. In northeastern part of drill 

 grounds, west of Bougie and on road to Setif (Rue de 

 Jeanne d'Arc); 36 meters south of road passing 

 through drill grounds, 85 meters southwest of south 



AFRICA. 

 Algeria conlinti^d. 



Bougie, Conslanlinc, 1911 continued. 



corner of square stone building, and 12.2 meters west 

 of more westerly one (marked 3) of two boundary 

 stones which are in range with station; marked by tent 

 peg driven flush with ground. True bearings: smoke- 

 stack in valley to northward, 212 38'. 7; sign po'?t at 

 railroad crossing, 281 24'. 6. 



Colomh-Bechar, Ain Sefra, 1912. In small wadi to west 

 of village, about 200 meters southwest of "Bureau 

 Arabe," about 200 meters east of monument erected 

 on hill to memory of soldiers who have fallen in South 

 Algeria, 43.5 meters south of south corner of mud wall 

 around palm grove, and 44.5 meters southwest of 

 northwest corner of garden; marked by wooden peg 

 driven flush with ground. True bearings: cross on 

 church, 251 02'.4; minaret of mosque, 343 30'.2. 



El-Guerrah, Constantine, 1911. Southwest of Guettar-el- 

 Ayech road and one-half kilometer northeast of jimc- 

 tion of this road with Biskra road to northwest of 

 railroad station; 60 meters southwest of 30-kilometer 

 stone and 45 meters south-southwest of center of 

 road; marked by tent peg driven flush with ground. 

 True bearing: chimney of house with small square 

 second story, 316 32'. 2. 



he Kreider, Oran, 1912. On northeast edge of shallow 

 ravine, about one-half kilometer north of railroad 

 station, 400 paces northwest of bend in road leading 

 up hill to fortress, and about 270 paces northeast of 

 reservior; marked by wooden peg driven flush with 

 ground. True bearings: spire on church, 42 20'. 9; 

 flagstaff on tower of fortress, 312 57'. 9; dome on mili- 

 tary barracks, 322 47'.4. 



Nemours, Oran, 1912. South of Nemours and about one- 

 half kilometer southeast of seashore, on southwest side 

 of sandy plain; in line with white rectangular house 

 and lone tree, 45.5 meters west-northwest of tree and 

 103.5 meters east-southeast of entrance to house; 

 marked by wooden peg driven flush with ground. True 

 bearings: spire on lighthouse, 103 03'. 2; spire of 

 church in Nemours, 205 09'.2. 



Oran {Gambetta), Oran, 1912. Very nearly the station of 

 ^ioureaux of 1887. It is near site of old racecourse at 

 Gambetta, about one-half kilometer north of electric 

 railroad, 32 meters south of edge of bluff, 500 meters 

 west of a masked battery on edge of bluff, 350 meters 

 east of battery, 300 meters north of steam railroad. 

 200 meters north of ravine, and 51 meters southwest 

 of fork of road; marked by wooden peg driven flush 

 with ground. iTrue bearings : clock tower on railroad 

 station. 42 41'.4; tower of chapel on mountain near 

 old fort, 86 02'.5. 



Ornn (neto station), Oran, 1912. Near rifle range, about 

 kilometers west of Oran, on road which runs westward 

 along coast; 35 meters east of small pine on edge of 

 bluff and 24 meters southwest of entrance to target 

 pit. True bearings: clock tower of railroad station, 

 50 28'. 6; tower of Santa Cruz chapel on mountain 

 near old fort, 68 03'.6. 



Orleansville, Algiers, 1912. Near northeast corner of town 

 wall, nearly opposite inclosed field used as cattle 

 market, 200 meters south of Oued Chelif, and prob- 

 ably within 200 meters of station of 1887 by Moureaux; 

 21 meters southwest of milestone marked 8-15S on 

 southwest side of Orleansville-Oued Chelif road, 51 

 meters northeast and 47 meters southeast respectively 

 from southeast and northeast corners of military angle 

 on city wall; marked bj' wooden peg driven flush with 

 ground. True bearing: lightning-rod on smoke-stack, 

 about 0.5 kilometer, 244 34'.2. 



