=PREHISTORIC TIMES,= AS ILLUSTRATED BY ANCIENT REMAINS AND THE MANNERS AND CUSTOMS OF MODERN SAVAGES. Illustrated. Entirely new revised edition. 8vo. Cloth, $5.00. The book ranks among the noblest works of the interesting and important class to which it belongs. As a _résumé_ of our present knowledge of prehistoric man, it leaves nothing to be desired. It is not only a good book of reference but the best on the subject. "This is, perhaps, the best summary of evidence now in our possession concerning the general character of prehistoric times. The Bronze Age, The Stone Age, The Tumuli, The Lake Inhabitants of Switzerland, The Shell Mounds, The Cave Man, and The Antiquity of Man, are the titles of the most important chapters."--_Dr. C. K. Adams's Manual of Historical Literature._ =ANTS, BEES, AND WASPS.= A Record of Observations on the Habits of the Social Hymenoptera. With Colored Plates. 12mo. Cloth, $2.00. "This volume contains the record of various experiments made with ants, bees, and wasps during the last ten years, with a view to test their menial condition and powers of sense. The principal point in which Sir John's mode of experiment differs from those of Huber, Forel, McCook, and others, is that he has carefully watched and marked particular insects, and has had their nests under observation for long periods--one of his ants' nests having been under constant inspection ever since 1874 His observations are made principally upon ants, because they show more power and flexibility of mind; and the value of his studies is that they belong to the department of original research."" "We have no hesitation in saying that the author has presented us with the most valuable series of observations on a special subject that has ever been produced, charmingly written, full of logical deductions, and, when we consider his multitudinous engagements, a remarkable illustration of economy of time. As a contribution to insect psychology, it will be long before this book finds a parallel."--_London Athenæum._ ----------------------- New York: D. APPLETON & CO., 1, 3, & 5 Bond Street. _D. APPLETON & CO.'S PUBLICATIONS._ ------------------------------------------------------------------ Dr. H. ALLEYNE NICHOLSON'S WORKS. =TEXT-BOOK OF ZOÖLOGY,= for Schools and Colleges. 12mo. Half roan, $1.60. =MANUAL OF ZOÖLOGY,= for the Use of Students, with a General Introduction to the Principles of Zoölogy. Second edition. Revised and enlarged, with 243 Woodcuts. 12mo. Cloth, $2 50. =TEXT-BOOK OF GEOLOGY,= for Schools and Colleges. 12mo. Half roan, $1.25. =INTRODUCTION TO THE STUDY OF BIOLOGY,= Illustrated. 12mo. Cloth, 60 cents.