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819 Market Street altitude appearance aqueous vapor Arequipa Astronomical Astronomical Society atmosphere August Auriga Barnard bright Burckhalter California clouds comet corona dark diameter Directors disc distance Earth eclipse equatorial error Geldern Greenwich Harvard College Observatory heliometer images instrument January July Jupiter latitude Lick Observatory light limb lines lunar magnitude March Mars Martian measures Mercury meridian circle meteor miles Milky minutes Molera Moon Moon's motion Mount Hamilton mountain nebula negatives night Nova November Oakland observations obtained orbit Pacific Standard papers parallax Perrine phenomena photographic Pierson planet plates polar caps position printed probably Prof Professor Campbell Professor Holden Professor Schaeberle projections Publications A. S. P. region Right Ascension San Francisco satellite Secretary seen solar spectra spectroscopic spectrum Sun's surface telescope terminator theory tions transit TRANSIT OF MERCURY University Observatory visible W. H. S. Monck wave-lengths zenith Ziel
Page 85 - Yet all these were when no man did them know, Yet have from wisest ages hidden beene; And later times thinges more unknowne shall show.
Page 250 - A Mechanical Theory of the Solar Corona." It stated that his investigations seemed to prove conclusively that the solar corona is caused by light emitted and reflected from streams of matter ejected from the sun by forces which in general act along lines normal to the surface of the sun ; these forces are most active near the center of each sun-spot zone.
Page 157 - The Bruce Gold Medal of the Astronomical Society of the Pacific has been awarded to Professor Ernest W.
Page 19 - Directors. 1. Active members shall consist of persons who shall have been elected to membership and shall have paid their dues as hereinafter provided. 2. Life members shall consist of persons who shall have been elected to life membership and shall have paid $50 (fifty dollars) to the Treasurer of the Society.
Page 222 - ... found a large number of minute black points. They occur almost without exception at the junctions of the canals with one another and with the shaded portions of the planet. They range from thirty to one hundred miles in diameter, and in some cases are smaller than the canals in which they are situated. Over forty of them have been discovered, and for convenience we have termed them lakes.
Page 310 - AMERICAN JOURNAL OF SCIENCE, FOUNDED BY PROFESSOR SILLIMAN IN 1818. Devoted to Chemistry, Physics, Geology, Physical Geography, Mineralogy, Natural History, Astronomy, and Meteorology, and giving the latest discoveries in these departments.
Page 250 - The theoretical corona is caused by light emitted and reflected from streams of matter ejected from the Sun, by forces which, in general, act along lines normal to the surface of the Sun ; these forces are most active near the center of each Sun-spot zone. Owing to the rotation of the Sun, the streams of matter will not lie along normals, since the angular velocity of different portions of...
Page 275 - Of these, the former are distinguished by that ruddy colour which characterizes the light of this planet (which always appears red and fiery), and indicates, no doubt, an ochrey tinge in the general soil, like what the red sandstone districts on the Earth may possibly offer to the inhabitants of Mars, only more decided.
Page 184 - ... With regard to the method of observation employed, and the details of the observations themselves, we must refer the reader to the publication mentioned below, but a brief summary of the results may not be out of place. The observations were made in 1893, and two kinds of spots were observed : (i) dark spots upon a conspicuous double belt in the northern hemisphere ; and (2) bright spots in the equatorial zone. In the case of the former, the period was obtained from numerous spots, but eleven...
Page 148 - COMMITTEE The report of the Auditing Committee was read by Professor BK Emerson, as follows : To the Geological Society of America : Your committee, appointed to audit the accounts of the Treasurer for the year ending November 30, 1894, have made the necessary examination and have found them correct. The committee recommends that the Society approve the action of the Council in directing the Treasurer to draw upon the receipts from sales of the Bulletin to...