The American Printer: A Manual of Typography / Containing practical directions for managing all departments of a printing office, as well as complete instructions for apprentices; with several useful tables, numerous schemes for imposing forms in every variety, hints to authors, etc.

by Thomas MacKellar

R. P.—Regius Professor, the King’s Professor.

R. P. E.—Reformed Protestant Episcopal.

R. R.—Railroad.

R. S.—Recording Secretary.

Rs.—Responsus, to answer.

R. S. A.—Royal Society of Antiquaries; Royal Scottish Academy.

R. S. D.—Royal Society of Dublin.

R. S. E.—Royal Society of Edinburgh.

R. S. L.—Royal Society of London.

R. S. S.—Regiæ Societatis Socius, Fellow of the Royal Society.