Meetings of the Association of American Geologists and Naturalists Act of Incorporation COMMUNICATIONS. On some of the consequences of the hypothesis, recently proposed, that the intrinsic brilliancy of the Fixed Stars is the same for each star. Problems in Watson's Co-ordinates. Abstract. By THOMAS HILL On two New Instruments for the Determination of Time and Latitude. By S. C. CHANDLER, Jr. Illustrated Tidal Theory of the Forms of Comets. By GEO. W. COAKLEY. Illustrated. The Red Spot on Jupiter: Observations upon its physical character; its mag- nitude and the determination of the Rotation Period of the Planet. By |