GENERAL ASTRONOMY. By H. Spencer Jones. (Arnold. 21s. net.)—A new
popular treatise on astronomy is required every few years, and no one is better qualified than Mr.
Spencer Jones to carry on the apostolic succession of Herschel and Newcomb. He uses mathematics as little as possible, though he follows mathematical methods of reasoning wherever he can, in the hope of assisting students to clothe the symbols " with more descriptive matter than is given in the text-books on mathematical astronomy." He gives an adequate account of the latest discoveries and speculations, towards most of which—e.g., the canals on Mars, the intra-Mercurial planet, and the radium theory of the sun's heat—his attitude is distinctly conservative. The general reader will find in this volume a comprehensive, accurate and intelligible account of the science of the stars.
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