314 



Land Magnetic Observations, 1914-20 



NORTH AMERICA. 



United States continued. 



Sentinel, Colorado, 1918. About 1 mile (1.6 km.) northeast 

 of Sentinel Point, on backbone of ridge, 300 to 400 

 yards (one-third km.) southwest of a rooky summit, 

 on grass-covered soil. Angle at station between cabin 

 on top of same ridge about one-third mile (0.5 km.) 

 to southwest and hill about half mile (0.8 km.) to 

 northwest, 71. 



Shelter Island, New York, 1914. See Derriug Harbor. 



Solomons, Maryland, 1919. Two stations were occupied' 

 designated A and B. Station A is near extreme south- 

 ern corner of Solomons Island, on unoccupied area 

 known as Sandy Point, about SO feet (24 meters) 

 nearly east of a stone marker of the United States 

 Coast and Geodetic Survey, about 30 feet (9 meters) 

 north of top of bank at high-water hue, 278 paces 

 southwest of nearest corner of Solomons Bank, the 

 line to which passes nearly over second base of ball 

 ground, and 185 paces southwest of front corner of 

 picket fence about premises of Dr. Marsh on water- 

 front; marked by copper tack in top of an oak stake. 

 True bearings: left tangent of left chimney on farm- 

 house across river, 57 Ol'.O; light on red beacon off 

 Point Patience, 119 41'.6; right tangent frame house 

 on mainland having large dormer windows, 186 55'.9; 

 near corner, Solomons Bank, 199 12'.3; corner of 

 Dr. Marsh's picket fence, 229 56'.2; first black bea- 

 con at entrance to Solomons Landing, 234 59'.5; 

 Drum Point Lighthouse, 264 18'.8; gable of white 

 house behind Millstone Landing, 337 27'.2; left edge 

 of small shed across bay, nearly over spar-buoy (S6), 

 355 35'.2. 



Station B is in line with left tangent of left chimney 

 of house across Patuxent River from Station A, 71.2 

 feet (21.70 meters) southwest of Station A, 23.0 feet 

 (7.01 meters) southeast of station marker left by 

 United States Coast and Geodetic Survey, from whirl. 

 a line to gable of large white barn across river to 

 southeast passes about 1 foot (0.3 meter) west of 

 station, about 44 feet (13 meters) from top of bank 

 to southward, 63 feet (19 meters) from top of bank 

 to southwest, and 24.5 feet (7.47 meters) nearly east 

 of wooden signal-pole; marked by copper tack in top 

 of an oak stake. True bearing: left tangent of left 

 chimney of farmhouse across river, 57 01 '.0. 



Stratlon Park, Colorado, 1918. See Broadmoor. 



Trachyte Mountain, Colorado, 1918. On eastern slope of 

 summit, along ridge running from summit to north- 

 east, just above an old shaft, and about 500 feet (152 

 meters) from triangulation signal near summit. True 

 bearings: triangulation signal on summit, 44 24'.2; 

 tree on summit of Rhyolite Mountain, 100 13'.2; 

 railroad water-tank at Gillett, 109 43'. 0; garage on 

 Pikes Peak, 216 04'.8; tree on Cow Mountain, 317 

 16'.7. 



Washington, District of Columbia, Standardizing Magnetic 

 Observatory, 1914-1919. Observations were made 

 with the standard instruments of the Department of 

 Terrestrial Magnetism at the Standardizing Magnetic 

 Observatory, designated S. M. O. Observations for 

 declination and horizontal intensity were made on 

 piers N m and Sm, and for inclination on piers N e and 

 Se. A few auxiliary observations were made on pier 

 E m . (See pages 199, 200, Vol. II, Researches, De- 

 partment of Terrestrial Magnetism.) 



Windy Point, Colorado, 1918. About one-eighth mile (0.2 

 km.) south of cog-road, on backbone of salient, 25 

 feet (7.6 meters) west of old prospect on salient jut- 

 ting down from Windy Point, 180 feet (54.9 meters) 

 north of trench or prospect dug 2 or 3 feet (0.6 or 0.9 

 meter) dee], across same salient; marked by mound 



NORTH AMERICA. 



United States concluded. 



Windy Point, Colorado, 191S continued. 



of stone. True bearings: stake on mountain about 

 1 mile (1.6 km.) north of Bull Park, 29 35'.8; south- 

 west corner stanchion on Pikes Peak tower handrail, 

 147 41'.3; northeast corner stanchion on Pikes Peak 

 tower handrail, 1474S'.6; east corner of Windy 

 Point station (stone house), 16006'.4; Bald Moun- 

 tain signal, 31638'.3. 



Woburn, Massachusetts, 1918. In open lot southeast of 

 residence of Professor G. L. Hosmer, 42.4 feet (12.92 

 meters) and 50.8 feet (15.48 meters) respectively 

 from the southeast and southwest corners of the resi- 

 dence, 100 feet (30.5 meters) west of a wire fence 

 parallel to Washington Street, and 111.4 feet (33.95 

 meters) northeast of north corner of outbuilding. 



Woodland Park, Colorado, 1918. On right of road from 

 Manitou to W'oodland Park, about one-fourth mile 

 (0.4 km.) nearly south of railway station, 146 feet 

 (44.5 meters) from center of road, 89.7 feet (27.34 

 meters) southwest of corner of fence, and 185 feet 

 (56.39 meters) from fence corner on opposite side 

 of highway. True bearings: cleft in mountain, 16 

 45'.2; east edge of chimney on sehoolhouse, 177 22'.5; 

 center of railroad-crossing warning, 266 37'.2; Sum- 

 mit House, Pikes Peak, 357 21'.6. 



SOUTH AMERICA. 



Argentina. 



Bahia Blanca, Buenos Aires, 1917, 1919. The C. I. W. 

 station of 1917, winch was a practical reoccupation of 

 the Argentine Meteorological Office station 1904, 

 1 90S, and 1913, was closely reoccupied in 1919. On 

 land belonging to Engineer White, about 1 kilometer 

 from town in the direction of Arroyo Maldonado, in 

 northwest extension of street passing two squares 

 northeast of railway station, about 300 meters north- 

 west of nearest building in town, about 100 meters 

 from fence corner, and 66.1 meters north of crooked 

 wooden fence post, almost in line between fence post 

 and municipal building in Bahia Blanca; marked by 

 wooden peg. True bearings: chimney by elevator, 

 66 52'.0; tower of municipal building in Bahia Blanca, 

 188 09'.5; chimney by elevator, 329 58'.5. 



Buena Esperanza, San Luis, 1917. Practical reoccupation 

 of Argentine Meteorological Office station of 1913. 

 In paddock belonging to Mr. Clark of "Tilley and 

 Clark," about 500 meters west-southwest of railway 

 station, in large inclosure east of machine-shed near 

 Mr. Clark's house, about 100 meters southeast of 

 large water reservoir, and 57.1 meters northeast of 

 diagonal wire fence running southeast from near shed, 

 measured at its junction with another fence running 

 west. True bearings: pump rod on distant windmill, 

 9 58'.4; center of windmill south of Mr. Clark's house, 

 91 33'.4; center of top of windmill northeast of house, 

 1U44'.4. 



Canada de Gomez, Santa Fe, 1917. Practical reoccupation 

 of Argentine Meteorological Office station of 1912. 

 At Mr. Greenwood's estancia, east of town, 5 squares 

 north of La Valle, 25 squares east of Espafia Street, 

 in paddock about 200 meters east-southeast of es- 

 tancia house, 86 meters east of wire fence on west 

 side of paddock, 58.6 meters south of north fence, 

 and 52.8 meters from south fence. True bearings: 

 chimney on distant house, 16 11'.4; extreme left 

 edge of chimney on south end of estancia house, 121 

 28'.5; estancia windmill, 148 12'. 9; extreme right 

 edge of large brick building near railway, 355 08'.3. 



