div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader042vdocumentsusreader042viewer20220403105d4c695c88c99356718ba78chtml5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: · meridian is called declination To determine the geomagnetic field there is To determine the geomagnetic field there is need for three independent components src=https:reader042vdocumentsusreader042viewer20220403105d4c695c88c99356718ba78chtml5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 2button div class=ts-image a href=https:reader042vdocumentsusreader042viewer20220403105d4c695c88c99356718ba78chtml5page2jpg target=_blank amp-img class=ts-thumb alt=Page 2: · meridian is called declination To determine the geomagnetic field there is To determine the geomagnetic field there is need for three independent components src=https:reader042vdocumentsusreader042viewer20220403105d4c695c88c99356718ba78chtml5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 3button div class=ts-image a href=https:reader042vdocumentsusreader042viewer20220403105d4c695c88c99356718ba78chtml5page3jpg target=_blank amp-img class=ts-thumb alt=Page 3: · meridian is called declination To determine the geomagnetic field there is To determine the geomagnetic field there is need for three independent components src=https:reader042vdocumentsusreader042viewer20220403105d4c695c88c99356718ba78chtml5thumbnails3jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 4button div class=ts-image a href=https:reader042vdocumentsusreader042viewer20220403105d4c695c88c99356718ba78chtml5page4jpg target=_blank amp-img class=ts-thumb alt=Page 4: · meridian is called declination To determine the geomagnetic field there is To determine the geomagnetic field there is need for three independent components src=https:reader042vdocumentsusreader042viewer20220403105d4c695c88c99356718ba78chtml5thumbnails4jpg width=142 height=106 layout=responsive amp-imga divdiv