56. What important invention did Hoe & Co. bring out in 1845?
57. What were the inventions of Pratt and Bullock?
58. What did Hoe & Co. produce in 1847?
59. What did Henry A. Wise Wood invent?
60. Give a list of the most important American inventions in printing machinery.
61. Why is the list not longer?
TYPOGRAPHIC TECHNICAL SERIES FOR APPRENTICES
The following list of publications, comprising the Typographic Technical Series for Apprentices, has been prepared under the supervision of the Committee on Education of the United Typothetae of America for use in trade classes, in course of printing instruction, and by individuals.
Each publication has been compiled by a competent author or group of authors, and carefully edited, the purpose being to provide the printers of the United States—employers, journeymen, and apprentices—with a comprehensive series of handy and inexpensive compendiums of reliable, up-to-date information upon the various branches and specialties of the printing craft, all arranged in orderly fashion for progressive study.
The publications of the series are of uniform size, 5 × 8 inches. Their general make-up, in typography, illustrations, etc., has been, as far as practicable, kept in harmony throughout. A brief synopsis of the particular contents and other chief features of each volume will be found under each title in the following list.