A treatise on telegraphy, prepared for students of the International correspondence schools, Scranton, Pa. ...
Edition: 1st ed.
Publisher: International Textbook Co.
Published: 1901
Place of publication: Scranton
Language: eng
Subjects: Telegraph; Correspondence schools and courses
Notes: Access to portions of this material may be restricted.
Table of contents: title: [v. I. Arithmetic, mensuration, elementary algebra and trigonometric functions, elementary mechanics, principles of electricity and magnetism, electrical measurements, batteries ...; title: v. 2. Elements of telegraph operating, telegraphy ...; title: v. 3. Tables and formulas.; title: v. 4. Answers to questions.]