For further and more detailed information on Routes and Distances, Transportations, Mining Laws, How to Stake a Claim, Where to Register Your Claim, Modes of Placer Mining and Quartz Mining, Return of Gold from the Diggings, Mortality, Cost of Living, etc., I refer the reader to my book on this subject entitled “Klondyke Facts,” a work of about 224 pages.  It is published in paper covers at 50 cents a copy with maps and illustrations, and is sent postpaid by the publishers on receipt of 50 cents.

American technical book co., 45 Vesey Street, New York, N.Y., U.S.A.

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ABC of Electricity.  Now in its 62d thousand.  By Wm. H. Meadowcroft. 1 volume, 12mo, cloth, 50 cents Fully illustrated.

This excellent primary book has taken the first place in elementary scientific works.  It has received the endorsement of Thomas A Edison.  It is for every person desiring a knowledge of electricity, and is written in the simplest style so that a child can understand the work.  It is what its title indicates, the first flight steps in electricity.

Scholars’ A B C of Electricity.  By Wm.H.  Meadowcroft.  One volume, 12mo, illustrated, cloth, 50 cents.

The author of this work has designed it for the use of teachers and scholars.  A large number of simple experiments have been added, with notes relative to the work.  It is the primary book for school use.

A Most Important Work of General Interest.

The X Ray; or, Photography of the Invisible and its Value in Surgery By William J. Morton, M.D.  Written in collaboration with Edwin W. Hammer. 1 volume, 12mo, cloth and silver, 75 cents; paper, 50 cents.

Everyone has been waiting for this work to give full information of Professor Rontgen’s marvellous discovery.  The work explains in clear and simple style how these extraordinary pictures are taken through solids.  Full description is given of the apparatus used, and the text is profusely illustrated with half tone illustrations giving fac-simile copies of the pictures taken from the negatives of the author.  The subjects are varied.

The A B C of the X Ray.  By Wm.H.  Meadowcroft. 1 volume, 12mo, cloth and gold, 75 cloth; paper, 50 cents.

The first primary work on the subject.  A book for the people.  The author of “A B C of Electricity,” showed clearly in that work his ability to explain a technical subject for the laymen who know nothing of scientific terms.  He has written this work about the X Ray in his usual clear and simple style, and a wide circulation of this useful book is assured.  The texts of the author is beautifully embellished with fine engravings, and nothing is omitted that will give the public a clear knowledge of this remarkable discovery of Prof.  Rontgen.  The public would do well to secure both of these important works.