178 



Land Magnetic Observations, 1905-10 



SOUTH AMERICA. 

 Venezuela concluded. 



Caracas, Federal District, 1905 continued. 



instrument is 33.6 feet (10.24 meters) to the south- 

 southeast. Marked by a marble post, rhomboidal 

 in cross-section, being 3.5 by 6 by 27 inches (9 by 15 

 by 69 cm.) in dimensions, and set so as to project 

 about 2 inches (5 cm.) above ground; top lettered 

 C.l. 1905 with a small hole at center. The east spire 

 of the Pantheon Nacional is in true bearing 240 15'. 6. 



ISLANDS, ATLANTIC OCEAN. 

 Bermudas. 



Agar'slsland, 1907, 1910. The principal C.I.W. station. A, 

 is near the southwestern extremity of the island, 

 about 150 feet (46 meters) from western extremity 

 of spur extending westerly toward Two Rock Passage, 

 about 35 feet (11 meters) from the south shore line 

 and about 60 feet (18 meters) from north shore line. 

 The spur is separated from main part of island by a 

 shallow cove. Station marked by a native coral 

 stone post 18 inches (45 cm.) long, projecting about 

 6 inches (15 cm.) above general surface; the projecting 

 portion is squared to 10 by 10 inches (25 by 25 cm.) 

 and covered with a very thin layer of cement, in which 

 the diagonals are marked, the intersection of the 

 diagonals defining the precise point. The following 

 true bearings were determined: Gibbs Hill lighthouse, 

 27 51'. 6; clock (left) tower at the dockyard, 146 

 40'.9; flagpole at Port's Island (naval quarantine), 

 43 32'. 3. An auxiliary station was established in 

 1910, 106.3 feet (32.4 meters) almost due west of the 

 principal station near extremity of projecting point 

 of rock. 

 A secondary station, B, v/as established in 1907 about 

 25 feet (8 meters) from main station in the direction 

 of lighthouse. 



Ireland Island, 1907. Station is at western side of island 

 on tract which has been leveled and is now designated 

 as Moresby's Plain, near center of a low square mound 

 surrounded by a rude stone coping, about 10 feet 

 (3 meters) square and 10 inches (25 cm.) high, 

 formerly used as a firing point in rifle practice; a 

 similar mound is about 15 yards (14 meters) further 

 south, and a much larger and newer platform marked 

 "911 yards" is 52 feet (15.8 meters) measured to the 

 nearest corner northward. The following true 

 bearings were determined: spire of Somerset Church, 

 46 51'.6; signal mast at fort, 242 07'.0. 



Nonsuch Island, 1907. The new station established 

 in 1907 is at a point near the western extremity of 

 the island 30 or 40 rods (about 150 meters) west of 

 E. D. Preston's station of 1890; just west of the limit 

 of a patch of dense low bushes, on crest of ridge, about 

 35 feet (11 meters) from edge of steep bank on north, 

 and 150 feet (46 meters) from edge of bank to south. 

 Marked by a coral stone about 8 by 10 inches (20 by 

 25 cm.) at the top, set so as to project slightly above 

 the surrounding coral rock into which it was set. The 

 following true bearings were determined: flagstaff at 

 Fort George, 156 11'. 7; Martello tower, west edge, 

 110 35'.3; pilot mast at Tuckerstown, 57 33'';7. 

 A second station, practically the same as E. D. 

 Preston's station of 1890, was also occupied. It is 

 probably 6 feet (2 meters) south of Preston's Point, 

 80 feet (24.4 meters) northwest of flagpole, 56 feet 

 (17.1 meters) from northwest corner of new kitchen, 

 100 feet (30.5 meters) from the northwest corner of 

 men's ward, 22 feet (6.7 meters) from edge of path 

 to landing, and 67 feet (20.4 meters) from southeast 

 corner of keeper's house. The bearing of St. Davids 

 lighthouse is 212 SO'.O. 



ISLANDS, ATLANTIC OCEAN. 

 Bermudas concluded. 



St. George, 1907. Station is north of town, on a tri- 

 angular tract of land belonging to the colony, lying 

 between the poorhouse on the west and military lands 

 to the east, bounded on the cast by a deep-cut road 

 leading straight to center of town, on the northwest 

 by a by-road running northeasterly, and on the 

 south by the edge of the hill overlooking a larger tract 

 covered with a grove of large cedars. The station is 

 26 feet (7.9 meters) west of the sunken road and 70 

 feet (21.3 meters) southwest of a boundary stone 

 standing east of that road, which is about 10 feet 

 (3 meters) wide. Marked by a coral stone 8 by 10 

 by 16 inches (20 by 25 by 41 cm.), the precise point in 

 the top being marked by driving in brass nails. The 

 following true bearings were determined: St. Davids 

 lighthouse, 311 25'.4; southeast corner of Hotel 

 St. George, 4 19'.0; the flagmast at Fort Victoria, 

 242 24'.9. 



Spectacle Island or Hunt's Island, 1907, 1910. Station is 

 near center of western part of island, in a low circular 

 opening among trees where the soil is unusually deep; 

 there are trees about 25 feet (8 meters) to the east 

 and a clump of bushes 12 feet (4 meters) to the west. 

 Two large cedar trees stand, one 18 feet (5.5 meters) 

 to the south, and the other 22 feet (6.7 meters) 

 southwesterly. The bare rock is about 12 yards 

 (11 meters) to the north through bushes, and about 

 twice as far to the south. The shore on the south is 

 very flat, so that distance to water varies greatly 

 with the tide. Marked by a cedar post set about 

 20 inches (50 cm.) in the soil and projecting slightly 

 above surface with top marked by the letters C.L, 

 made by driving in brass nails. The following true 

 bearings were determined: clock tower at dockyard, 

 180 34'. 5; left edge of tank at north end of Boaz 

 Bridge, 159 18'.3; vane on the lighthouse, 351 25'.5. 

 An auxiliary station 34.55 feet (10.53 meters) south of 

 principal station, in exact line with clock tower at 

 dockyard, was also occupied in 1910. A secondary 

 station, B, was established in 1907 about 30 feet (9 

 meters) north of main station. 



Madeiras. 



Funchal, 1909. The main station, designated as A, is 

 near center of parade grounds of College Barracks and 

 as close as could be determined to station of Capt. 

 F. A. Chaves, 1903 and 1906. The Cathedral spire 

 is in true bearing 315 16'. 4. The secondary station, 

 designated as C, is on point west of Funchal, about 

 one-eighth mile (0.2 kilometer) east of new fish 

 cannery, on a level bluff about 60 feet (18 meters) 

 above water and about 15 feet (4.5 meters) back from 

 beach. Sail Rock is in true bearing 277 16'. 3. 

 Auxiliary stations were established at both of these 

 points and showed considerable local disturbance; 

 B was 40 feet (12 meters) from A, and D was 42.5 feet 

 (13 meters) from C. 



West Indies. 



Basse Terrc, Guadeloupe, 1905. In northwestern part of 

 town, about a mile (1.6 kilometers) from the wharf 

 and in the northwestern corner of the Public Garden, 

 about 250 feet (76 meters) almost due north of the 

 gardener's office and about SO feet (15 meters) from 

 the stone wall to the northwest. Marked by block 

 of stone 12 by 12 by 6 inches (30 by 30 by 15 cm.) 

 set in a bed of stone and cement, and flush with 

 surface of ground; the top is lettered C.I. 1905, and 

 a hole at the center indicates the precise point. 

 The west corner of gardener's office is in true bearing 

 6 19'.3. 



