The direction of the wave in this earthquake was north fifty degrees west; the limited area over which it extended has not furnished sufficient data to calculate its velocity. This earthquake differs from all others that have occurred in this locality in this particular: the earth continued to vibrate with increasing and again decreasing degrees of force for ten hours, at no time entirely ceasing during this period. 22 h. 1 m., another light shock, consisting of a single vibration. 23 h. 50 m., another shock. After this shock the vibrations of the earth ceased to be noticeable. October 9th, 10 h. 34 m.—Another light shock. 11 h. 32 m., another shock. After this shock the earth continued to vibrate at intervals till noon of the tenth. OCTOBER 13th, 2 h. 5 m.—A smart shock at San Francisco; felt at Oakland and Santa Clara; also at Angel Island. OCTOBER 14th, 23 h. 45 m.—Another shock at San Francisco. OCTOBER 15th, 3 h. 40 m.—Another shock at San Francisco. NOVEMBER 24th, 3 h. 45 m.—A smart shock at Watsonville, Santa Cruz Co. DECEMBER 7th, 1 h. 15 m.—A light shock at San Francisco. Professor Whitney presented the plate published by Mr. Haidinger, the distinguished Chief of the Austrian Geological Survey, to exhibit the structure of the Carleton meteoric iron. This plate, together with an elaborate article describing the appearance and structure of this meteorite, is published in the proceedings of the Vienna Academy of Science, Vol. XLVIII, page 301. Professor Whitney also made some remarks on the nature and distribution of the meteorites which have, up to the present time, been discovered on the Pacific Coast and in Mexico; of these remarks the following is an abstract. It is remarkable that no meteoric stones have ever been discovered, either near the Pacific coast or, indeed, so far as we know, anywhere on this side of the Rocky Mountains. Masses of meteoric iron, on the other hand, are known to exist in quite a number of localities, and many of these masses are of very large size. On page eleven, of the third volume of the Academy’s Proceedings, I have given a list of the localities of meteoric iron known in Arizona and Northern Mexico. This was done in order to attract the attention of explorers and prospectors to these remarkable masses, and in the hope of getting more definite information in regard to some of them. Indeed, some additional items have already been obtained in reference to the masses there noticed.