Across Texas Brave Tom Cabin in the Clearin Dorsey, the Young Adventurer Fighting Phil Four Boys Great Cattle Trail Honest Ned Hunt of the White Elephant Iron Heart Lena Wingo, the Mohawk Lost in the Forbidden Land Lucky Ned Mountain Star On the Trail of the Moose Plucky Dick Queen of the Clouds Righting the Wrong River and Jungle River Fugitives Secret of Coffin Island Shod with Silence Teddy and Towser Through Forest and Fire Two Boys in Wyoming Unlucky Tib Upside Down Up the Forked River Wilderness Fugitives Wyoming THE VOLUMES IN THIS SERIES COMPRISE SOME OF THE BEST WRITINGS OF THIS POPULAR AUTHOR Price per volume, .75 cents THE JOHN C. WINSTON CO., PUBLISHERS Winston Building--Philadelphia * * * * * Two New Books by Dr. Winfield Scott Hall Dr. Hall's "SEXUAL KNOWLEDGE" is recognized as the only work of the kind written by an accepted authority and more satisfactorily covers the important subject completely than any other book. Appeals have been made to him to prepare books that treated the subject separately from the standpoint of the boy or girl by those who prefer placing books in the hands of young people treating the side of the question that concerns them individually. These new books have been prepared to meet this demand. Youth and its Problems THE SEX LIFE OF A MAN By WINFIELD SCOTT HALL, PH.D., M.D. Member Medical Faculty, Northwestern University, Fellow American Academy of Medicine, Fellow American Association for the Advancement of Science. To the _youth_ who hopes for vigorous _aggressive young manhood_; to the young man who aspires to virile _adult manhood_ this volume is dedicated. Cloth--12mo. 248 pages. Price $1.00 Net Girlhood and its Problems THE SEX LIFE OF WOMAN By WINFIELD SCOTT HALL, PH.D., M.D. in co-operation with JEANETTE WINTER HALL Author of Primer on Physiology, etc. That the _young woman_ may find here an answer to her _unexpressed questions_ is the purpose of this book. Cloth--12mo. 210 pages. Price $1.00 Net In the preparation of these two books the object of the author is to make it evident to readers that wholesome information clearly and simply imparted is a very great help to boys and girls, guiding them unerringly along the path of right living, which leads to that goal which all hope to reach--SUCCESS and HAPPINESS. * * * * * The Big Series of Boys' Books for 1918 THE BRIGHTON BOYS SERIES By Lieutenant James R. Driscoll An entirely new series of Boys' Books which have their setting in the Great War and deal with patriotism, heroism and adventure that should make a strong appeal to American boys. The volumes average 250 pages and contain four illustrations each. The BRIGHTON BOYS in the TRENCHES The BRIGHTON BOYS with the SUBMARINE FLEET The BRIGHTON BOYS in the FLYING CORPS The BRIGHTON BOYS in the RADIO SERVICE The BRIGHTON BOYS with the BATTLE FLEET 12mo. Price per volume, 75 cents