DAVID P. TODD, M.A., Ph.D.
Professor of Astronomy and Director of the Observatory, Amherst College.
Cloth, 12mo, 480 pages. Illustrated Price, $1.30
This book is designed for classes pursuing the study in High Schools, Academies, and Colleges. The author's long experience as a director in astronomical observatories and in teaching the subject has given him unusual qualifications and advantages for preparing an ideal text-book.
The noteworthy feature which distinguishes this from other text-books on Astronomy is the practical way in which the subjects treated are enforced by laboratory experiments and methods. In this the author follows the principle that Astronomy is preëminently a science of observation and should be so taught.
By placing more importance on the physical than on the mathematical facts of Astronomy the author has made every page of the book deeply interesting to the student and the general reader. The treatment of the planets and other heavenly bodies and of the law of universal gravitation is unusually full, clear, and illuminative. The marvelous discoveries of Astronomy in recent years, and the latest advances in methods of teaching the science, are all represented.
The illustrations are an important feature of the book. Many of them are so ingeniously devised that they explain at a glance what pages of mere description could not make clear.
Copies of Todd's New Astronomy will be sent prepaid to any address, on receipt of the price, by the Publishers:
American Book Company
NEW YORK · CINCINNATI · CHICAGO
A Laboratory Manual in Practical Botany
For use in Secondary Schools and for Elementary Work in Colleges
By Charles H. Clark, A.M., D.Sc.,
Principal of Windsor Hall School, Waban, Mass.
Cloth, 12mo, 272 pages. Illustrated 96 cents
The course of botanical study outlined in this book is intended to give the student a general view of the subject, and at the same time to lay a foundation upon which more advanced studies may be built. The book is primarily a laboratory manual and follows the method recommended by the Committee of Ten and employed by the best teachers. So pursued, the study of botany provides the means of developing habits of close and accurate observation and of cultivating the reasoning powers that can scarcely be claimed for any other subject taught in the schools.
It provides a systematic outline of classification to serve as a guide in laboratory work and in the practical study of the life histories of plants, their modes of reproduction, manner of life, etc. The treatment is suggestive and general to adapt it to the courses of study in different schools, and to allow the teacher to follow his own ideas in selecting the work of his class.
Copies of Todd's New Astronomy will be sent prepaid to any address, on receipt of the price, by the Publishers:
American Book Company
NEW YORK · CINCINNATI · CHICAGO
Important New Books
Crockett's Plane and Spherical Trigonometry
By C.W. Crockett, C.E., Professor of Mathematics and
Astronomy in Rensselaer Polytechnic Institute, Troy, New York.
| With Tables. Cloth, 8vo. 310 pages | $1.25 |
| The Same. Without Tables | 1.00 |
| Logarithmic and Trigonometric Tables (separate) | 1.00 |
A clear analytic treatment of the elements of Plane and Spherical Trigonometry and their practical applications to Surveying, Geodesy, and Astronomy, with convenient and accurate "five place" tables for the use of the student, engineer, and surveyor. Designed for High Schools, Colleges, and Technical Institutions.
Raymond's Plane Surveying
By W.G. Raymond, C.E., Member American Society of
Civil Engineers, Professor of Geodesy, Road Engineering,
and Topographical Drawing in Rensselaer Polytechnic Institute.
| Cloth, 8vo. 485 pages. With Tables and Illustrations | $3.00 |
A modern text-book for the study and practice of Land, Topographical, Hydrographical, and Mine Surveying. Special attention is given to such practical subjects as system in office work, to labor-saving devices, to coördinate methods, and to the explanation of difficulties encountered by young surveyors. The appendix contains a large number of original problems, and a full set of tables for class and field work.
Todd's New Astronomy
By David P. Todd, M.A., Ph.D., Professor of Astronomy
and Director of the Observatory, Amherst College.
| Cloth, 12mo. 500 pages. Illustrated | $1.30 |
A new Astronomy designed for classes pursuing the study in High Schools, Academies, and other Preparatory Schools. The treatment throughout is simple, clear, scientific, and deeply interesting. The illustrations include sketches from the author's laboratory and expeditions, and numerous reproductions from astronomical photographs.
Copies of the above books will be sent prepaid to any address, on receipt of the price, by the Publishers:
American Book Company
NEW YORK · CINCINNATI · CHICAGO
Birds of the United States
A Manual for the Identification of Species East of the Rocky Mountains
By Austin C. Apgar
Author of "Trees of the Northern United States," etc.
Cloth, 12mo, 415 pages, with numerous illustrations. Price, $2.00
The object of this book is to encourage the study of Birds by making it a pleasant and easy task. The treatment, while thoroughly scientific and accurate, is interesting and popular in form and attractive to the reader or student. It covers the following divisions and subjects:
Part I. A general description of Birds and an explanation of the technical terms used by ornithologists.
Part II. Classification and description of each species with Key.
Part III. The study of Birds in the field, with Key for their identification.
Part IV. Preparation of Bird specimens.
The descriptions of the several species have been prepared with great care and present several advantages over those in other books. They are short and so expressed that they may be recalled readily while looking at the bird. They are thus especially adapted for field use. The illustrations were drawn especially for this work. Their number, scientific accuracy, and careful execution add much to the value and interest of the book. The general Key to Land and Water Birds and a very full index make the book convenient and serviceable both for the study and for field work.
Apgar's Birds of the United States will be sent prepaid to any address, on receipt of the price, by the Publishers:
American Book Company
NEW YORK · CINCINNATI · CHICAGO