XVI. Contributions to Terrestrial Magnetism, No. XI

• Published in: Proceedings of the Royal Society of London
• Format: Article in Journal/Newspaper
• Language: English
• Published: The Royal Society 1868
• Subjects: South Pole; South pole
• Online Access: http://dx.doi.org/10.1098/rspl.1867.0108; https://royalsocietypublishing.org/doi/pdf/10.1098/rspl.1867.0108

This number of the Contributions of Terrestrial Magnetism contains the completion of the Magnetical Survey of the South Polar Regions, undertaken by Her Majesty’s Government in 1840-1845 at the joint instance of the Royal Society and the British Association for the Advancement of Science. The observations themselves, and their provisional discussion, have already been given in the previous numbers, V., VI., VIII., and X. of the Contributions. The present number contains a general review of the whole survey, and is accompanied by three maps, which have been prepared, with the permission of the Hydrographer, Captain Richards, R. N., E. R. S., under the careful superintendence of the Assistant Hydrographer, Captain Frederick John Evans, R. N., F. R. S., one map being allotted to each of the three magnetic elements, viz. the Declination, Inclination, and Intensity of the Magnetic Force. In these maps the Isogonic, Isoclinal, and Isodynamic lines have been drawn, by the author of the paper, conformably with the observations around the circumference of the globe between the parallel of 30° S. and the South Pole. The paper also contains Tables, prepared with a view to the revision of the calculations of Gauss’s 'Allgemeine Theorie des Erdmagnetismus.’ They give the values of each of the three magnetic elements at the intersections of every fifth degree of latitude between 40° of south latitude and the South Pole, and every tenth degree of longitude between 0 and 360°.