With Ninety-six Illustrations. 12mo. Cloth, $2.00.
“The volume before us is one of the pleasantest science manuals we have read for some time.”—Athenæum.
“Mr. Judd’s summary is so full and so concise, that it is almost impossible to give a fair idea in a short review.”—Pall Mall Gazette.
“Professor Judd discusses the nature of volcanic action, the internal structure of volcanic mountains, the distribution of volcanoes upon the surface of the globe, their activity in different periods of the earth’s existence, the use of volcanoes in the economy of nature, the various theories that have been made to explain volcanic action. He has abbreviated in this volume a vast amount of information, which has a fascinating interest for many minds by reason of its relation to the past history and future destiny of this little bubble of earth upon which we sail through the infinite spaces of ether.”—New York Home Journal.
“The book gives an exhaustive statement of the phenomena of volcanoes, and of the facts in the formation of mountain-chains, and relates a mass of interesting observations and facts, the results of patient and extensive personal investigation and study, mostly in different places in Southern Europe, but not neglecting the world’s larger volcanoes in other regions.”—Hartford Times.
“A fascinating example of patient observation, sound judgment, and acute reasoning. Under Professor Judd’s skillful treatment the volcano is forced not only to tell its own history, but also to solve a number of earth problems seemingly disconnected with it; and the story is told in strong, nervous language, and with an earnestness and subdued enthusiasm that are delightfully stimulating.”—Boston Gazette.
“Professor Judd first points out the errors in the old definition of a volcano. The volcanic hole is very often not on the summit, but on the side, sometimes at the base of the mountain or hill, and it sends forth steam rather than smoke, and the supposed raging flames are nothing more than the glowing light of a mass of molten material reflected from those vapor-clouds. So our old ignorance vanishes, and in this admirable work the internal structure of volcanic mountains, the nature and products of volcanic action, and the distribution of the materials rejected from volcanic vents, the succession of operations taking place at volcanic centers, are all very ably and clearly discussed.”—Philadelphia Times.
“A succinct and excellent treatise on a very interesting subject.”—Philadelphia North American.