Of this series of Science Readers, Books I, II, and III are adapted to secondary grades comprising pupils who are in their third and fourth years of school work. Both the reading and the subject matter of Books IV, V, and VI are suitable for grammar grades. At the end of each of the first three volumes is a short summary of the lesson. This may assist the teacher in preparing the lesson. Each reading lesson is illustrated in a way that will serve vividly to recall the teaching, thus emphasizing the important points. The lessons are progressive, each one of the series being built on the facts taught in the previous lesson. Moreover, the subject matter--the properties of bodies; the nature, growth, and structure of plants; the common types of animals; minerals and metals; the phenomena relating to weather; in short, all the conditions which surround us--is exactly the science which should be taught in the elementary schools. [Revised and adapted for use in schools, with a preface by Mrs. L. L. W. Wilson.]