parts of Europe, and the important results to which it has already led; and that they consider it highly desirable that similar series of observations, regularly continued in correspondence with, and in extension of these, should be instituted in various parts of the British dominions.
"2. That this Association considers the following localities as particularly important:—Canada, Ceylon, St. Helena, Van Diemen's Land, and Mauritius, or the Cape of Good Hope; and that they are willing to supply instruments for their use.
"3. That in these series of observations the three elements of horizontal direction, dip, and intensity, or their theoretical equivalents, be insisted on, as also their hourly changes, and, on appointed days, their momentary fluctuations.
"4. That the Association considers it highly important that the deficiency, yet existing in our knowledge of terrestrial magnetism in the southern hemisphere, should be supplied by observations of the magnetic direction and intensity, especially in the high southern latitudes between the meridians of New Holland and Cape Horn; and they desire strongly to recommend to Her Majesty's government the appointment of a naval expedition expressly directed to that object.
"5. That in the event of such expedition being undertaken, it would be desirable that the officers charged with its conduct should prosecute both branches of the observation alluded to in Resolution 3., so far as circumstances will permit.
