322 



Land Magnetic Observations, 1914-20 



SOUTH AMERICA. 



Bolivia concluded. 



Totora, Cochabamba, 1914 continued. 



east corner of southeast oven, 68.6 feet (20.91 meters) 

 southeast of northeast oven; marked by tack in top 

 of stake driven flush with ground. True bearing: 

 center of window of chapel on hillside, 1 mile (1.6 

 km.), 105 28'.8. 



Tres Cruces, Santa Cruz, 1914. On north side of road 

 from Santa Cruz to Puerto Suarez, 7 paces north of 

 center of road, 7 paces south of pasture fence, 31 

 paces southwest of east corner of pasture, and 61 

 paces southwest of southeast corner of corral belong- 

 ing to small fort of Tres Cruces; marked by a tack 

 in top of a stake driven flush with ground. 



Tucabaca, Santa Cruz, 1914. On south bank of Tucabaca 

 River, east of Santa Cruz-Puerto Suarez road and 

 south of a line of trees along bank, 63.4 feet (19.3 

 meters) south of east tree of row, 76 feet (23.2 meters) 

 southeast of a big dead tree in row, and 53 feet (16.2 

 meters) northeast of lone tree standing on west side 

 of road, south of row of trees; marked by a tack in 

 top of stake. 



Uyuni, Potosi, 1917. Proximate reoccupation of C. I. W. 

 station of 1912. About 0.5 kilometer northwest of 

 plaza, in acute angle formed by intersection of two 

 roads, 24 feet (7.3 meters) southwest of road run- 

 ning northwest, and 56 feet (17.1 meters) north of 

 road running west; marked by wooden peg. True 

 bearings: southwest corner of distant white wall, 9 

 28'.0; point of distant mountain between two less- 

 pointed ones, 154 44'. 1; near corner of nearby mud- 

 hut, 27102'.l; south side of chimney at railroad 

 shops, 295 52'.0. 



Vacas, Cochabamba, 1914. South of lower road entering 

 Vacas from Cochabamba, in center of a circular de- 

 pression in angle formed by walls of two inclosures, 

 west and south respectively, of house of Miguel 

 Castro, in line with south wall of south inclosure, 

 34.4 feet (10.48 meters) west of southwest corner, 

 and 69.0 feet (21.03 meters) south of south wall of 

 west inclosure; marked by tack in stake. True bear- 

 ings: tip on church tower, 21953'.4; east edge of 

 cemetery wall, half mile (0.8 km.), 348 14'.0. 



Yacuses, Santa Cruz, 1914. In a clearing on Santa Cruz- 

 Puerto Suarez road, between water-hole or lagoon 

 and large wire-fenced inclosure, about 100 meters 

 southwest of house, 131.5 feet (40.08 meters) south of 

 wire fence, 60.9 feet (18.56 meters) west of nearest 

 of 3 posts in line remaining from an old house that 

 stood in clearing, and 6.9 feet (2.10 meters) north of 

 extension of line of posts; marked by tack in top of 



peg- 



Brazil. 



Abuna, Matta Grosso, 1917. Practical reoccupation of 

 C. I. W. station of 1911, on north bank of Madeira 

 River, between railroad track and river, 71 paces 

 southwest of monument erected by engineers of the 

 Madeira-Mamore Railway, 12.9 meters west of wire 

 fence, 19.8 meters east of another wire fence, and 7.5 

 meters north of brink of bank of river; marked by 

 stake driven flush with ground. True bearings: south 

 gable of hotel roof, 188 20'.3; near corner of Cafe 

 Brazil, 290 27'.8. 



Alcobara, Para, 1915. On railroad property, west of 

 Tocantins River, about 100 yards (91 meters) west of 

 railroad superintendent's house, 34.3 feet (10.45 

 meters) northwest of fence inclosing cultivated 

 ground; marked by tall 3-inch (8-cm.) hardwood 

 stake. True bearings: stump 80 feet (24.4 meters) 

 high in cultivated field, 17 14'; large lone sumahuma 



SOUTH AMERICA. 



Brazil continued. 



Alcobaga, Para, 1915 continued. 



tree, 214 58'.6; left edge of railroad superintendent's 

 house, 251 47'.2; left edge of house of Jose 1 Monteira, 

 293 54'.8. 



Allianca, Amazonas, 1917. On right bank of Purus River, 

 about 3 kilometers southwest of Canotama, about 

 200 meters northeast of largest house of Allianca, 

 about 10 meters from river, on ground which is over- 

 flowed in high water every year, and 5 meters 

 northwest of small pond; marked by peg about 1 

 meter in length, projecting 2 centimeter.-, above ground. 

 True bearings: west gable of largest house, 31 22'.0; 

 right corner of small white house, about 400 meters, 

 44 57'.0; north gable of small tile-roofed house, 

 about 100 meters, 342 16'.3. 



Almeirim, Para, 1918. On left bank of Amazon River, 

 in opening on top of very high bank between church 

 and jail, 39.4 meters southeast of southeast corner 

 of small room attached to church, 47 meters north- 

 west of north corner of jail and 39.6 meters north- 

 east of west cement post at top of cement incline to 

 river; marked by wooden peg. True bearing: point 

 on west cement post at gate, 319 25'.9. 



Amarrarao, Piauhy, 1919. In open lowlands, about 

 200 meters east of church, 120 meters back from 

 beach on prolongation of line of houses on south 

 side of Rua Joaquim Pires, and 5S meters southwest of 

 vacant thatched house; marked by a large wooden 

 stake driven flush with sand. True bearings: east 

 corner of railway depot, 56 50'.2; eastern spire on 

 church, 82 09'.9; western corner of church, 86 42'.8; 

 light- and signal-tower, 248 23'.6; western corner of 

 highest house to south, 338 17'.9. 



Araguary, Minas Geraes, 1915. In Observatory Square, 

 105 feet (32.0 meters) northeast of southeast corner 

 post of observatory inclosure; marked by peg driven 

 flush with ground. True bearings: left edge of Diniz 

 Santos smoke-stack, 5910'.2; foot of weather-vane pole 

 in observatory inclosure, 49 29'.6; right edge of 

 house on corner of square, 226 45'.4; large tree in 

 corner of square, 331 42'.4. 



Araguaya River It, Malta Grosso, 1915. On west bank 

 of Araguaya River, about 75 yards (69 meters) 

 from water's edge, and about midway between 

 Valadores Island and Colombo Island; marked by 

 peg driven flush with ground. 



Aruma, Amazonas, 1917. On right bank of Purus River, 

 212 miles (341 km.) by river from Manaos, on 

 ground which is overflowed at height of wet 

 season, at a point about 40 meters west of thatched 

 house, about 3 meters southeast of path leading from 

 river to house, and 5.0 meters north, 14.9 meters 

 west and 17.9 meters southwest of three trees re- 

 spectively; marked by wooden peg. 



Asareas, Malta Grosso, 1914. At a settlement known as 

 Asareas, on trail between Sao Luiz de Caceres and 

 Matto Grosso, 4 paces south of new road, 23 paces 

 north of telegraph-line, 4.9 feet (1.49 meters) north 

 of post 3 inches (8 cm.) in diameter projecting 3 

 feet (91 cm.) above ground, and 10 paces north of 

 old road measured from point on road 67 paces west 

 of wooden bridge over small stream; marked by tack 

 in top of tent peg driven flush with ground. 



Barra do Sao Manoel, Amazonas, 1918. On left bank of 

 Tapajos River, near junction of Tapajos, Sao Manoel, 

 and Juruena rivers and about 1 kilometer from point, 

 in middle of river, where states of Para, Amazonas, 

 and Matto Grosso meet, about 150 meters south of 

 buildings, on high ridge about 15 meters west of top 



