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Lyttelton Times, Volume XXV, Issue 1614, 15 February 1866, Page 2

ANTiQurrr of tub Arachne.—Professor Romer has announced the discovery of a fossil spider, which resembles the recent genus Lycosa, in the coal measures of Upper Silesia. The interest of this discovery lies in the fact that hitherto spiders have not been known from any rocks older than the Jurassic, and that now the existence of them in the Palasozoic period is proved. Tides in Lakks. —Lieutenant-Colonel L. D. Graham, of the U.S. Engineers, has reported to- the American Academy of Arts and Sciences the results of a series of observations proving the existence in Lake Huron, not only of a semi-diurnal lunar tide, but of a semi-diurnal solar tide, which is separable from that produced by the combined action of the sun and moon, as he previous'y had shown for Lake Michigan. Colonel Graham added that no observations, as far as he knew, had ever been made to ascertain the existence of this phenomenon in the Caspian Sen, which is a perfect lake, and the largest and deepest known, fie therefore suggested that the attention of the scientific w >rld should be drawn to the importance of a series of tidal observations there.