182 



Land Magnetic Observations, 1905-10 



ISLANDS, ATLANTIC OCEAN. 



West Indies continued. 



St. George, Grenada, 1905 continued. 



northeast corner of stable, 48.3 feet (14.72 meters) 

 northwest of burial lot, and 68.3 feet (20.82 meters) 

 due west of a fiddlewood tree, which is east of road. 

 Marked by a limestone post 6 by 6 by 24 inches (15 by 

 15 by 60 cm.) set so as to project about 1 inch (3 cm.) 

 above general surface and having its top lettered C.I. 

 1905, with a drill hole at the center. The following 

 true bearings were determined: signal station, 99 

 13'.5; lighthouse, 100 13'.6; Roman Catholic Church 

 spire, 111 58'.2. 



St. Johns, Antigua, 1905. Just east of town, in north- 

 western part of the Botanical Garden, on the west 

 slope of a hill to the northwest of large sunken flower 

 bed. Marked by a stone post 12 by 12 by 30 inches 

 (30 by 30 by 76 cm.), the upper end being dressed 

 down to about 6 inches (15 cm.) square, projecting 

 about 2 inches (5 cm.) above general surface and 

 lettered C.I. 1905, with a small hole at center. The 

 following true bearings were determined: signal station 

 on Goat Hill, 101 03'.1; signal station on Rat Hill, 

 109 00'.6; north spire on Episcopal Church, 117 33'.9. 



San Fernando, Trinidad, 1905. In the southwestern part 

 of government pasture and public recreation grounds, 

 about half a mile (800 meters) south of town, about 

 400 feet (122 meters) due west of armory, and about 

 250 feet (76 meters) from fence on west. Marked by 

 a stone 6 by 6 by 36 inches (15 by 15 by 90 cm.) 

 set so as to project about 3 inches (8 cm.) above surface 

 of ground, and having the letters C.I. 1905 painted 

 in black on the top. The following true bearings were 

 determined: Anglican Church spire, 238 52'.9; 

 Wesleyan Church spire, 243 40'.7. 



Sangre Grande, Trinidad, 1905. About 1.5 miles (2.4 

 kilometers) south of town on a small hill, in the 

 northw'cstern corner of the warden's yard near the 

 public road, and 64.8 feet (19.75 meters) from the 

 northwest corner of house. Marked by a limestone 

 post 6 by 6 by 36 inches (15 by 15 by 91 cm.) set so 

 as to project 3 inches (8 cm.) above general surface and 

 lettered C.I. 1905, with a small hole at the center. 



San Juan, Porto Rico, 1905. Station A is near North 

 Base triangulation station of the LT. S. Coast and 

 Geodetic Survey, on opposite side of bay from San 

 Juan and southwest of Morro Castle. The triangu- 

 lation station was originally marked by the top of a 

 glass bottle set in a cement pier 14 inches (36 cm.) in 

 diameter at the top, placed about 60 feet (18 meters) 

 from the shore line and having its top Hush with 

 general surface of ground. Station B is about 0.5 

 mile (0.8 kilometer) north of Catano and about 50 feet 

 (15 meters) south of harbor signal tower. Station C 

 is across the bay from San Juan about 1 mile (1.6 

 kilometers) north of Catano. It is at a point 54.5 feet 

 (16.6 meters) northeast of the South Base triangu- 

 lation station of the U. S. Coast and Geodetic Survey, 

 on a line joining that station with the Morro light- 

 house, and 57.2 feet (17.4 meters) west of a wire 

 fence. The triangulation station is marked by a 

 concrete post set flush with ground, over which a 

 signal tower is erected. The following true bearings 

 were determined: Morro lighthouse, 217 09'. 7; dome 

 of jail, 255 33'. 2. 



Santa Cruz, Cuba, 1909. About one-half mile (0.8 kilo- 

 meter) north of town, near the northern border of 

 the marshy plain where it merges into a rising grass 

 plain, about one-fourth mile (0.4 kilometer) west of 

 the road leading from Calle Cimero to Santa Clara, 

 one-fourth mile (0.4 kilometer) southwest of three small 

 houses on the roadside, 100 paces south of a wire 



ISLANDS, ATLANTIC OCEAN. 



West Indies continued. 



Santa Cruz, Cuba, 1909 continued. 



fence, 125 paces southeast of south corner of this 

 fence and 34 paces south of a road which branches 

 off from main road a little north of guardhouse. 

 Marked by intersection of two marks cut in top of 

 post 2 by 3 by 18 inches (5 by 8 by 46 cm.). The cross 

 on church to southeast is in true bearing 302 25'.9. 



Santiago, Cuba, 1909. The first station was established 

 in an open space on Raja Yoga grounds, about 100 

 feet (30 meters) southeast of road leading to dwelling 

 house in grove to the northeast. Marked by a 

 wooden stake projecting about 2 inches (5 cm.) out 

 of ground. Iron flagpole on San Juan Hill bears 

 343 29'. 3. The main station was established about 

 125 yards (114 meters) southwest of monument to 

 American soldiers on San Juan Hill, almost opposite 

 cocoa palm grove at foot of hill, 31 feet (9 meters) 

 northeast of intersection of two trenches that come 

 together at an acute angle, 7 feet (2 meters) southeast 

 of edge of trench running southwest and northeast. 

 Marked by marble slab 8 by 2% by 18 inches (20 by 

 6 by 46 cm.) projecting 2)2 inches (6 cm.) out of 

 ground and lettered on top C.I. 1909 (the period 

 after the I is center of station). The flagpole on 

 Raja Yoga grounds, seen between the two most 

 southerly cocoa palm trees, bears 154 25'. 2. 



Scarborough, Tobago, 1905. In the Botanical Garden on 

 hill in northwestern part of garden to west of gard- 

 ener's house and about 400 feet (122 meters) north 

 and a little to west of his office, and 65.4 feet (19.93 

 meters) due north of the meteorological station. 

 Marked by a stone post 6 by 6 by 30 inches (15 by 15 

 by 76 cm.) set so as to project about an inch (3 cm.) 

 above the general surface and lettered on top C.I. 

 1905, with a small drill hole at the center. The 

 following true bearings were determined: flagpole, 

 old Fort and signal station, 311 50'. 8 ; flagstaff on 

 courthouse, 335 15'.4. 



Scorpion Point, Culebra Island, Porto Rico, 1910. 

 Practically identical with that of the U. S. Coast and 

 Geodetic Survey of 1903 and 1904, on line between 

 the hydrographic signal "Scorp 2" and the triangu- 

 lation station "Soldado," 7.9 meters from "Scorp 2," 

 3.6 meters from edge of bluff that stands at this 

 place, the latter distance being measured in the 

 direction of the "Soldado" triangulation station. 

 The azimuth of the "Soldado" triangulation station 

 as supplied by the U. S. Coast and Geodetic Survey 

 is 314 46'.5. 



Vieques, Porto Rico, 1905, 1910. The observations of 

 1905 were made at the old absolute magnetic observa- 

 tory of the U. S. Coast and Geodetic Survey 

 and in its immediate neighborhood. In 1910 obser- 

 vations were made in the new absolute house of the 

 observatory on the regular magnetometer pier and 

 the regular earth inductor pier, these two piers being 

 designated as "New Absolute Observatory." Sta- 

 tions Nos. 1 and 2 are in line with the azimuth pier 

 of the observatory and the right hand edge of Caballo 

 Blanco Reef, which is 3.5 kilometers distant. Station 

 No. 1 is 24.2 meters to the seaward of the azimuth 

 pier. Station No. 2 is 26.4 meters to the landward 

 of the azimuth pier. The tower of the lighthouse at 

 Point Mulas is in true bearing from magnetometer 

 pier 199 20'.0; from station No. 1, 200 23'.1; and 

 from station No. 2, 198 12'.5. 



Yaguaramas, Cuba, 1908. At the eastern end of an open 

 square in the western part of town, 96.6 feet (29.4 

 meters) southwest of the entrance to Seiior Luis 

 Gomez's house, 55.8 and 99.8 feet (17.0 and 30.4 



