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0505 Report of a Mission to Yarkund in 1873 : vol.1
1873年ヤルカンド派遣報告 : vol.1
Report of a Mission to Yarkund in 1873 : vol.1 / 505 ページ(カラー画像)

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[Figure] r 地磁気観測. H.トロッター大尉、工兵隊、により行われた磁気縞(伏角)及び磁気偏向(偏差)の観測結果の抜粋 1873-74年.MAGNETIC OBSERVATIONS. Abstract of results of observations taken by Captain H. Trotter, R. E., for Magnetic Inclination (Dip) and Declination ( Variation ) 1873-74.

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doi: 10.20676/00000196
引用形式選択: Chicago | APA | Harvard | IEEE

OCR読み取り結果

OBSERVATIONS.

for Magnetic Inclination (Dip) and Declination (Variation) 1873-74.

Magnetic Dip north. | Magnetic Variation east. | REMARKS.

° ' | ° '
47 21·5 | 3 43 | From observations to Sun. (Two sets.)
(Mean of two sets.) | 3 56 | From observations to Sun and to Polaris.
47 22·7 | 3 51 | From observations to Polaris.
| 4 32 | Ditto ditto.
| 4 32 | Ditto ditto.
| 4 53 | Ditto ditto.
53 8·0 | 4 58 | Ditto ditto.
(Mean of two sets.) | 4 57 | Ditto ditto.
| 4 55 | Ditto ditto.
54 31·7 | 5 1 | Ditto ditto and to Sun. (Four sets.)

| 5 40 | From observations to Sun.
| 4 20 | From observations to β Ursæ Minoris. (Two sets.)
52 3·3 | 4 34 | From observation to Sun ditto.
| 4 24 | Ditto to Polaris ditto.
| 4 12 | Ditto Ditto ditto.
| 4 16 | From observation to do. and to β Ursæ Minoris.

General Cunningham, R.E., took magnetic observations at Leh in October 1847 when the dip was found to be ... 46° 43′·18, and the declination ... 46° 51′·88. The Schlagintweits in July and September 1856 made dip ... 3° 34′·1 E and the declination on July 31st ... 3° 21′·1 on September 30th