332 



Land Magnetic Observations, 1914-20 



SOUTH AMERICA. 



Guiana. 



Cayenne, French Guiana, 1918. Exact reoccupation of 

 C. I. W. station of 1908. In public roadway near 

 Botanical Gardens in eastern part of town, 236 meters 

 south of south garden gate, 10 feet (3.0 meters) 

 east and 31.5 feet (9.6 meters) west of edge of ditches 

 beside roadway; marked by a copper rod 1.5 centi- 

 meters in diameter, projecting 1 centimeter from 

 center of raised portion 32 by 33 centimeters and 2 

 centimeters high which is in center of concrete slab 

 1.54 meters square. True bearings: hole in top of 

 concrete block 42 by 41 by 47 centimeters high, 26.18 

 meters distant, 003'.4; steel post at east side of 

 south garden gate, 167 03'.6; hole in top of concrete 

 block 42 by 42 by 45 centimeters high, 29.58 meters 

 distant, 189 55'.4. 



Georgetown, British Guiana, 1918. Close reoccupation of 

 C. I. W. station of 1908. In grounds belonging to 

 Botanical Gardens south of gardens, near center of 

 former D'Urban race-course, 36 meters north of 

 drainage canal along inside of course in old graded 

 roadway which crossed course about 80 paces south 

 of point on which former "Round Stand" stood, at 

 a point 50.0 meters north of 7-wire fence along south 

 side of field, 17 meters west of 8-wire fence which 

 crosses field from north to south, about 4 meters west 

 and 7.3 meters east respectively of ditches along sides 

 of roadway; marked by concrete block 6 by 6 by 24 

 inches (15 by 15 by 61 cm.) projecting slightly above 

 ground and lettered C. I. W. 1918, on top. True 

 bearings: cross on small church, 91 23M; top of 

 large house, 600 meters, 104 20'.2; ball below weather- 

 vane on botanical house, 400 meters,128 58'.0. 



New Amsterdam, British Guiana, 1918. Exact reoccupa- 

 tion of C. I. W. station of 1908. North of city on 

 grounds of lunatic asylum, near northeast corner of 

 large quadrangle used as playground and athletic- 

 field, 110 feet (33.5 meters) northwest of nearest 

 corner of superintendent's residence, 71 feet (21.6 

 meters) south-southeast of a 24-inch (61-cm.) tree, 

 27.5 feet (8.38 meters) west-northwest of a 12-inch 

 (31-cm.) mango, and 45.7 feet (13.93 meters) south- 

 west of 18-inch (46-cm.) tree in corner of tract; marked 

 by a cluster of three copper nails near center of top 

 of wooden post 6 by 6 by 24 inches (15 by 15 by 61 

 cm.) set flush with ground. True bearings: north- 

 east corner of a stockade, 25 03'.8; northwest corner 

 of foundation-pier of Victoria Block, 72 15'.7. 



Paramaribo, Dutch Guiana, 1918. Two stations, desig- 

 nated A and B, were occupied, near river, east of 

 city, on tract of ground occasionally used as a cricket- 

 field. Main station A is exact reoccupation of C. 

 I. W. station of 1908, 4.0 meters south of edge of a 

 ditch at north side of field and 37.0 meters east of 

 east corner of east foundation-post of old dressing- 

 room formerly used by cricket-players; marked by 

 original (1908) mark, a brass bolt in top of a hardwood 

 post 6 by 6 by 24 inches (15 by 15 by 61 cm.) set 

 almost flush with ground. True bearings: east gable 

 of garrison magazine, about 520 meters, 45 23'.0; 

 cist gable of public works building, 53 50'.7; left 

 side of lamp-post, 150 meters, 56 55'.1; gable of dis- 

 trict commissary, about 100 meters, 95 06'. 4. 



Auxiliary station B, for declination onlv, is 45.95 

 meters from station A ; marked by east side of hard- 

 wood peg. True bearings: east gable of garrison 

 magazine, 523 meters, 50 39'.4; station A, 128 32'.3. 



Pkru. 



Andomayo.A ncash, 1 917. About 4 kilometers west of Haci- 

 enda Andomayo, about 200 meters north of vertical 

 rock cliff, 19 meters south of main road, on flat place 



SOUTH AMERICA. 



Peru continued. 



Andomayo, Ancash, 1917 continued. 



up steep bank, 2.6 meters back from edge of bank, in 

 line with part of stone retaining wall, 4.4 meters west 

 of south stone in wall, 26.2 meters northwest of large 

 white boulder, and 3.2 meters east of edge of sink- 

 hole; marked by wooden peg. 



Arequi-pa, Arequipa, 1917. The C. I. W. stations of 1912 

 were exactly reoccupied. Station A is in northeast 

 corner of grounds of Arequipa branch of Harvard 

 Astronomical Observatory, 10.48 meters from north 

 mud and stone wall, 19.42 meters from east wall, 19.30 

 meters from northeast corner of house over 13-inch 

 telescope; marked by brass nail in top of stake pro- 

 jecting 20 centimeters above surface. True bearings: 

 northwest corner of observatory dwelling, 3 07'.7; 

 top of dome of church, 32 39'. 5; tower at Jesus Baths, 

 31047'.5. 



Station B is 15.21 meters northeast of station A, 

 in a line through station A and left corner of a distant 

 house whose azimuth is 65 14'. 9; marked by a brass 

 nail in top of stake projecting 20 centimeters above 

 surface. True bearings: ball on church across vallev, 

 33635'.9; church spire in Carmen Alto, 358 34'.3. 



Boca del Tupache, Loreto, 1914. On left bank of Rio Tu- 

 pache, about 1 mile (1.6 km.) above its junction 

 with the Putumayo, 130 feet (39.6 meters) northeast 

 of a house and 20 feet (6 meters) east of river bank 



Cerro de Pasco, Junin, 1917. About 400 meters south of 

 main office building of Cerro de Pasco Mining Com- 

 pany, and about 200 meters southwest of company 

 hospital, on a flat place on hillside overlooking rear 

 of a row of company dwelling-houses occupied by 

 American employees, 71.60 meters south of east corner 

 of most eastern dwelling in row, and in line with that 

 corner and east corner of small outhouse in rear; 

 marked by a wooden peg. True bearings: vertical 

 edge of distant mountain, 157 54'.9; west corner of 

 main office-building, 207 25'. 1; spire on Theatro 

 Hospital in town, 213 10'.4; west edge of water-tank 

 in town, 22156'.2; west edge of chimney on com- 

 pany hospital, 236 05'.8; north corner of" chapel on 

 hill, 295 22'.6. 



Chimbote, Ancash, 1917. Exact reoccupation of C. I. W. 

 station of 1912. About one-third mile (0.5 km.) from 

 landing pier and 1 block west of fence inclosing 

 railway grounds, in line with fronts of houses on west 

 side of street, and 73.73 meters north of northeast 

 corner of nearest house; marked by brass tack in top 

 of wooden peg. True bearings: farthest lamp-pole in 

 street, 15 41'.4; flagpole on mast of prominent house, 

 3636'.3; spire of distant chapel, 85 59'. 3; nearest 

 corner of largest tomb in cemetery, 211 07'. 9; flag- 

 pole on slaughter-house, 239 53'. 5; northwest corner 

 of railway-yard fence, 255 20'. 5; flagpole on railway 

 depot, 345 58'.6. 



El Encanto, Loreto, 1914. On ridge leading north from 

 headquarters of Peruvian Amazon Co., Ltd., about 

 midway between the headquarters building and a 

 small cemetery to northeast, 45.5 feet (13.87 meters) 

 east of a wire fence and 79 feet (24.1 meters) north- 

 east of shed north of headquarters. 



El Jubinelo, Loreto, 1914. On right bank of river, about 

 60 feet (18.3 meters) north of northeast corner of 

 Captain's quarters, and in line with east side of house. 



Hacienda Huayta, Puno, 1917. Three stations were occu- 

 pied, designated A, N, and E, in Hacienda Huayta, 

 which is about 8.5 miles (13.7 km.) south-southwest 

 of Lampa and about 2.5 miles (4.0 km.) north of 

 Miraflores, on knoll of pasture land known as Cau- 



