Civil Engineering Association

PLANE AND SPHERICAL TRIGONOMETRY AND SURVEYING

PREFACE :

This edition is intended for teachers, and for them only. The publishers will under no circumstances sell the book except to teachers of Wentworth's Trigonometry ; and every teacher must consider himself in honor bound not to leave his copy where pupils can have access to it, and not to sell his copy except to the publishers, Messrs. Ginn & Company.

It is hoped that young teachers will derive great advantage from studying the systematic arrangement of the work, and that all teachers who are pressed for time will find great relief by not being obliged to work out every problem in the Trigonometry and Surveying.

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