Schlagintweit, Hermann von; Schlagintweit, Adolf; Schlagintweit, Robert von: Results of a scientific mission to India and High Asia: undertaken between the years MDCCCLIV and MDCCCLVIII, by order of the court of directors of the hon. East India Company (Band 1): Astronomical determinations of latitudes and longitudes and magnetic observations: during a scientific mission to India and High Asia (Leipzig, 1861)

group iii. valley of the ganges and its tributaries. 363

B. Deflection.
1856, April 3, 4h 20m p.m. local time.
Magnets: Deflecting L 1, deflected H21.
Deflection bar: H3. Distances: 1 foot. Temp.: 38°-6 C, 101°-5 Fahr.

u0 = 6° 46' 40''
p. = 0-00017

Temp, of magnet 38°-0 C, 100°-4 Fahr.
q = 0-00020

log ~ = 8-75179
m = 0 -4417 X = Horizontal Intensity = 7-822

2. Dip.

1856, April 3, 121'20m p.m. local time.
Dip needle employed: No. 2. Temp.: 37°-9 C, 100°-2 Fahr.

End A.

O I

Face to instrument 32 41-2 „ ° '

Mean a = 32 35-0

Face reversed ... 32 28-8

End B.

o /

Face to instrument 32 53-6

Mean 0 = 32 46-8

lace reversed ... 32 40-0 _

Mean of the dip = = 32 40-90

Dip corrected for error of needle = 32 41-25

3. Vertical Intensity................ 5-020

4. Total Intensity................. . 9-294

No. 15. Lakhnau, in Audh.

Latitude North. Longitude East Green. Height,

26° 51' 10" 80° 55' 32" 520 feet.

In a garden, on alluvial soil, not far from the Kesident's (then General Outram's)
house. See p. 152.

Observer: Hermann.
DECLINATION.

1856, April 9, 8h 30m a.m. local time. Collimator 1; Theodolite 3, Troughton; Chron. 3.

Magnetic meridian ............................. 324 6-8

True meridian (see p. 153)...................... . 321 29-4

Declination East .... 2 37-4

46*