In Volume No. XXX of the International Education Series--Pedagogics of the Kindergarten--a number of Froebel's essays relating more especially to the plays and games were printed from the collection made by Wichard Lange. A new volume of the series, _Friedrich Froebel's Education by Development_, includes another selection from Lange's publication, in which the gifts are more thoroughly discussed. "Again and again, in the various essays," the editor of the series says, "Froebel goes over his theory of the meaning of the ball, the sphere, the cube, and its various subdivisions. The student of Froebel has great advantage, therefore, in reading this volume, inasmuch as Froebel has cast new light on his thought in each separate exposition that he has made.... The essays on the training school for kindergartners and the method of introducing children's gardens into the kindergarten are very suggestive and useful. In fact, there is no other kindergarten literature that is quite equal in value to the contents of this volume." The few essays in Lange's volume that still remain untranslated are characterized as being mostly of an ephemeral character. With the publication of the present volume, of which, as of the Pedagogics, Miss Josephine Jarvis is the translator, a complete list of the original works of Froebel in English translations has been provided in the International Education Series of Messrs. D. Appleton and Company. A useful manual for students in chemistry is the _Chemical Experiments_ of Prof. _John F. Woodhull_ and _M. B. Van Arsdale_ (Henry Holt & Co., New York). It embraces directions for making seventy-five experiments with different substances and chemical properties, including oxygen and the air, hydrogen and water, chlorine and the chlorine family, acids, bases, salts, sulphur, nitrogen, carbon, carbon dioxide and the carbonates, fermentation, potash, and problems to illustrate the law of definite proportions. A title is given to each experiment, suggesting what is to be proved by it; the details of the process are given, and the pupil is left to do the rest, entering his particular observations and conclusions on the blank page opposite the text. Questions are appended, of a nature further to develop the thinking powers of the pupils, and tables or lists are added of the elements concerned in the experiments, weights and measures, apparatus, and chemicals.