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THE POPULAR SCIENCE MONTHLY was established a dozen years ago to bring before the general public the results of scientific thought on many large and important questions which could find no expression in the current periodicals. Scientific inquiry was penetrating many new fields, extending important knowledge, and profoundly affecting opinion upon numberless questions of speculative and practical interest. It was the policy of this magazine at the outset, and has been constantly adhered to since, to obtain the ablest statements from the most distinguished scientific men of all countries in their bearing upon the higher problems of investigation. Leaving the dry and technical details of science, which are of chief concern to specialists, to the journals devoted to them, THE POPULAR SCIENCE MONTHLY has dealt with those more general and practical subjects which are of the greatest interest and importance to the people at large.

That which was at first a dubious experiment has now become an assured and permanent success. Our Monthly is the acknowledged organ of progressive scientific ideas in this country. Received with favor at the outset, it has gone on increasing in circulation and in influence, until its power is felt and acknowledged in the highest departments of intellectual activity, and its leadership is recognized in the great work of liberalizing and educating the popular mind.

Making neither sensational appeals nor flaring announcements, we may now refer to its course in the past as a sufficient guarantee that it will continue to discuss in the same earnest and fearless, but always respectful manner, the various important questions falling within its scope that are entitled to the intelligent consideration of thinking people. The twenty-three volumes now published constitute the best library of advanced scientific knowledge to be found in any country, and each new volume is certain to prove of increasing interest and value.

Science is the great agency of improvement in this age, private and public, individual, social, professional, and industrial. In its irresistible progress it touches everywhere, and affects everybody. It gives law to the material interests of the community, and modifies its ideas, opinions, and beliefs, so that all have an interest in being informed of its advancement. Those, therefore, who desire to know what is going on in the world of thought in these stirring times, when new knowledge is rapidly extending, and old errors are giving way, will find that they can keep informed only by subscribing for The POPULAR SCIENCE Monthly.

TERMS : $5.00 per annum.
Volume XXIV. begins with the November number. Subscriptions may begin at any time.

New York : D. APPLETON & CO., Publishers, 1, 3 and

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An Illustrated Weekly Journal for all Readers Interested in the Progress of Science.

In so comprehensive a journal as SCIENCE record and discussion of current scientific news and topics

necessarily become, in order to be acceptable to the whole body of scientific men,



As a specimen of the contents of the journal we append the Tables of Contents of three weeks' issues :

VOLUME III. No. 56. FEBRUARY 29, 1884. An International Scientific Association. The Alaska Military Reconnoissance of 1883, F. Schwatka. Note on the Flora of the Upper

Yukon, Sereno Watson. The Intelligence of Snakes, C. C. Abbott. Presentation of the Rumford Medals to Professor Rowland. Progress of Electrical Science during 1883, John Trowbridge. Biographies of Naturalists. Gordon's Electricity and Magnetism.

Bassler's Weather. Art Catalogue of the New England Manufacturers' Institute. Yarrow's Check-List of American Reptiles, Intelligence from Scientific Stations.-United States Geological Survey. Reports of Society Meetings.-Franklin Institute, Philadelphia. Canadian Institute, Toronto. Princeton Science Club. Society

of Arts, Boston. Academy of Natural Sciences, Philadelphia. Notes and News, Letters to the Editor.-A Clock for Sending Out Electric Signals Once an Hour or Oftener, H. W. Pennock, Deafness in

White Cats, Alexander G. Bell; Benj. Miller. The Krakatoa Eruption, G. 7. Symons. Expulsion of Water from a Growing Leaf, Joseph F. James. A Scientific Swindler, F. V. Hayden.

No. 57. MARCH 7, 1884. Gouverneur Kemble Warren. The New Bogosloff Volcano in Bering Sea, George Davidson. The Danish Expedition to East Green

land. Humidity and Chronometer Rates. The Great Comet of 1882. The Work of the Cambridge Archeological Museum.

Vortex Rings. The Silk Industry in the United States. Scribner's Where Did Life Begin? Intelligence from Scientific Stations.-United States Geological Survey. Reports of Society Meetings.-Chemical Society, Washington. Biological Society, Washington. Linnaean Society, New York,

Academy of Natural Sciences, Philadelphia. Engineers' Club, Philadelphia. Notes and News. Letters to the Editor.--Arrow-points at Evanston, D., W. A. Phillips. Illusive Memory. Henry F. Osborn. Ripple-marks in

Limestone, L. C. Wroster. A Novel Magnetic Engine. Charles K. McGee. Congenial Deafness in Animals, Swan M. Burnett. A Singular Optical Phenomenon, F. 7. S. Defective Effect of the Earth's Rotation, 7. E. Hendricks. A Carboniferous Genus of Sharks Still Living, E. D. Cope. Artificial Production of Rain, L. Annual Growth of the “Tree of Heaven," J. 1. D. Hinds.

No. 58. MARCH 14, 1884. The International Bureau of Weights and Measures. H. W. Blair. A Question of Exposure, 7. C. Mendenhall. Iron from North

Carolina Mounds, Cyrus Thomas. Pennsylvania Anthracite, Charles A. Ashburner. Improvements in Testing Machines, A. V. Abbott. New Method of Mounting Reflectors, Simon Newcomb. After-Images, Josiah Royce. Lakes of the Great Basin, Israel C. Russell. The definition of Mean Solar lime. Morphology of the Pelvis and Leg. C. S. Minot. Recent Work on Brachiopods, W. H. Dall. The American Institute of Mining Engineers. Geology of the Grand Cason. The Bacillus of Beriberi,

Biological Theories of an Artist. The Illinois Geological Report. Intelligence from Scientific Stations.-U. S. Geological Survey. Reports of Society Meetings.- Academy of Natural Sciences, Philadelpia. Philosophical Society, Washington, Ottawa Field

Naturalists' Club, Canada. Boston Society of Natural History. Notes and News, Letters to the Editor.-Red Sunsets and Precipitation, W. H. Howard. Does Unio Spin a Byssus, E. P. Larkin. Retrogade Meta

morphosis of a Strawberry Flower, Byron, D. Halsted.. The Reproduction of Clathrulina Elegans, Alfred C. Stokes. Formation of Anchor Ice, 7. G. J. Manayunkia Speciosa, Sara Gwendolen Foulke. Appearance of the Cyclone Cloud at Rochester, Minn., 1883. H. W. Holmes. Siones Placed in Pine Trees by Birds, C. R. Orcutt. How a Spider Sometimes Lifts Heavy

Objects to ics Nest, E. P. Larkin. The Use of the Method of Límits in Mathematical Teaching, Truman Henry Safford.

Five dollars ($5.00) per year; foreign countries, six dollars ($6.00). Trial subscription of three months, thirteen numbers, one dollar ($1.00).

Address PUBLISHER OF SCIENCE, 4 Bond St., New York City.


OfficERS AND DIRECTORS.-D. C. Gilman, of Baltimore, President; Gardiner G. HUBBARD, of Washington; Alex. GRAHAM Bell, of Washington, Vice-President: 0. C. Marsh of New Haven; SIMON NEWCOMB, of Washington.






PART I, FRENCH. PART II. GERMAN. The aim of this publication is to furnish select reading matter in the French and German languages, principally entertaining in its character, but of a high literary and moral tone.

The character of the Magazine is exclusively Eclectic, and the selections are made entirely from foreign French and German periodicals, including only those which have a recognized reputation for excellence, and which represent the efforts of the foremost and ablest foreign writers of the present day in these languages.

The Magazine specially commends itself to students of the Modern Languages who desire opportunities for reading practice which will give both profit and entertainment, and have the advantage of freshness combined with literary excellence; also to all persons interested in French and German who have limited opportunities or facilities for reading, offering, as it does, a convenient means of becoming acquainted with contemporaneous French and German writers and their best contributions to the Foreign magazines.

A department of “Literary Notices" in connection with each part is a desirable feature, being devoted to brief reviews and notices of the latest French and German publications.

OPINIONS OF THE PRESS. The Magazine, we think, will fully meet the want of among the countless students of modern languages, that steadily growing class of readers who wish to who are too remote from libraries to keep the run of keep abreast of the native thought in French and the foreign periodisals, and if its standard remains as German.- Colby Echo.

high as in the numbers already issued, success should A most valuable contribution to magazine literature. be certain.-Continent. We recommend the Magazine to students who wish to The perusal of these articles cannot fail to be of acquire a facility in French and German.-Oberlin great value to the students of these languages, while Review,

to those whose acquaintance with the same is more It will commend itself to all readers of these two extended, the ECLECTIC will be a source of much languages as furnishing a résumé of the best contribu- pleasure.—Columbia Spectator. tions to both tongues. —N. Y. Christian Union.

The entertaining element predominates and the leadThis publication will meet a decided want of many ing authors are well represented. The paper, type, readers, particularly if its contents are always as well print and style are attractive. —Publishers' Weekly. chosen as in the first number.-N. Y. School Journal. Shows good taste in its selections from French and

The selections are chosen with taste and discretion German periodicals.- Nation. from French and German periodicals of high charac- Admirably adapted for advanced students in German ter. - Worcester (Mass.) Daily Spr.

and French. It deserves a wide circulation among There is ample field for such a publication, especially students and general readers. Jewish Messenger.

Highly Endorsed by Leading Professors and Teachers of Languages.

TERMS :-Yearly Subscription to each Part, $2.50; to both Parts, (double number), $4.00. Single

Copies of each Part, 25 cents; both parts in one number, 35 cents. Sent postpaidjon receipt of price by ihe Publishers.

Single Copies for sali and subscriptions receized by all first-class booksellers and newsdealers.



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$314,105.00 Premium Notes, Cash Premiums, Reinsurance and Bank Stocks of New York City Banks. 116,420.80 other Claims...

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