For delicate humor and refined art of expression few writers can excel Jean Paul Friedrich Richter, but the sources of his rich flow of humor are so deeply hidden and his expression is so very subtle that the generality of those who attempt to read his works fail to appreciate him or even to understand him, and give him up. The pleasure of appreciating him is, however, worth the pains of learning to do so. Those who are willing to undertake this, and who read German, may find help in the _Selections from the Works of Jean Paul Friedrich Richter_, prepared by _George Stuart Collins_, and published by the American Book Company. The book is intended for students of German who have attained a certain mastery of the language. Pains have been taken to avoid such passages as might from their mere difficulty discourage the reader, and to choose such as would be complete in themselves. The selections are made from the shorter writings of the author, and each is intended to be representative of some feature of his manifold genius and style. A notice of the _Stenotypy_, or system of shorthand for the typewriter, of _D. A. Quinn_, was published in the Popular Science Monthly in March, 1896. It is really a system of phonography to be used with the typewriter whenever it is practicable to employ that instrument. A second edition of Mr. Quinn's manual and exercises for the practice of the system is published by the American Book Exchange, Providence, R. I. A paper on _Polished-Stone Articles used by the New York Aborigines before and during European Occupation_, published as a Bulletin of the New York State Museum, is complementary to a previous bulletin on articles of chipped stone. Both papers are by the Rev. Dr. _W. M. Beauchamp_, and are illustrated by figures from his large collection of original drawings, made in nearly all parts of New York, but mostly from the central portion. While the chipped implements are more numerous and widespread than those treated of in the present bulletin, the latter show great patience and skill in their higher forms and taste in selecting materials, and they give hints of superstitions and ceremonies not yet thoroughly understood. _Henry Goldman_ has invented, in the arithmachine, what he claims is a rapid and reliable computing machine of small dimensions and large capacity, with other advantages. He now offers, as a companion to it, _The Arithmachinist_, a book intended to serve as a self-instructor in mechanical arithmetic. It gives historical and technical chapters on the calculating machines of the past, describes the principles controlling the construction and operations, and furnishes explanations concerning the author's own device. (Published by the Office Men's Record Company, Chicago, for one dollar.)