|
|||||
|
|
THE EARTH'S MAIN MAGNETIC FIELD—EPOCH 1955 |
|
| Authors: | H F Finch B R Leaton |
| Institution: | Royal Greenwich Observatory, Herstmonceux Castle, Sussex, 1956 August 31. |
| Abstract: | Summary. A brief account of the material employed in the preparation of the Admiralty world charts for epoch 1955 |
| Keywords: | |