Reference Books

DIAMETER (from the Gr. διά, through, μέτρον, measure), in geometry, a line passing through the centre of a circle or conic section and terminated by the curve; the “principal diameters” of the ellipse and hyperbola coincide with the “axes” and are at right angles; “conjugate diameters” are such that each bisects chords parallel to the other. The diameter of a quadric... more...

INTRODUCTION Being to direct this discourse to the tradesmen of this nation, it is needful, in order to make the substance of this work and the subject of it agree together, that I should in a few words explain the terms, and tell the reader who it is we understand by the word tradesman, and how he is to be qualified in order to merit the title of complete. This is necessary, because the said term... more...

The Ideal Book. There is a wide felt need for a worthy book of sound hygienic and medical facts for the non-medical people. The Ideal Book for this mission should be compact in form, but large enough to give the salient facts, and give these in understandable language; it must not be "loaded" with obsolete and useless junk of odds and ends which have long ceased to be even interesting; it must... more...

RENEWALS An alphabetical list, under main headings (author, editor, compiler or title), of works in Class A for which the renewal copyright was registered during the period covered by this catalog. Joint authors, editors, etc., are represented by cross-references leading to the respective main headings. Information relating to both the original and renewal registrations is included in each entry.... more...

PREFACE. HERE is much truth and force in the old saying, that "Manners make the man." All persons should know how to appear to the best advantage in polite society. This very attractive volume furnishes rules of etiquette for all occasions, and is a complete guide for daily use in all matters pertaining to social intercourse. The first department treats of . The rules given under this head are... more...

BORGIA, LUCREZIA(1480-1519), duchess of Ferrara, daughter of Cardinal Rodrigo Borgia, afterwards Pope Alexander VI. (q.v.), by his mistress Vanozza dei Cattanei, was born at Rome in 1480. Her early years were spent at her mother’s house near her father’s splendid palace; but later she was given over to the care of Adriana de Mila, a relation of Cardinal Borgia and mother-in-law of Giulia Farnese,... more...

TheArt of Penmanship How to Become a Handsome Writer. The subject of the importance of good writing is as broad as its use. Reaching out in every direction, and pervading every corner of civilized society, from the humblest up to the highest employments, it is a servant of man, second only in importance to that of speech itself. In the world of business its value is seen, from the simplest record or... more...

RENEWAL REGISTRATIONS A list of books, pamphlets, serials, and contributions to periodicals for which renewal registrations were made during the period covered by this issue. Arrangement is alphabetical under the name of the author or issuing body or, in the case of serials and certain other works, by title. Information relating to both the original and the renewal registration is included in each... more...

INITIALS USED IN VOLUME IV. TO IDENTIFY INDIVIDUALCONTRIBUTORS, WITH THE HEADINGS OF THEARTICLES IN THIS VOLUME SO SIGNED.A. B. R.Alfred Barton Rendle, F.R.S., F.L.S., M.A., D.Sc.Keeper of the Department of Botany, British Museum.{Botany.A. E. H.A. E. Houghton.Formerly Correspondent of theStandardin Spain. Author ofRestoration of the Bourbons in Spain.{Cabrera.A. E. S.Arthur Everett Shipley, F.R.S.,... more...

INTRODUCTION For years this writer's aim was to visualize the armed Pennsylvanian of earlier days; how he went forth to fight his Indian foe, to slay the bison, moose, elk and smaller game, and on his expeditions to the fields of love: where his firearms and edged weapons originated. To create the living man his arms must be secured, and gradually the present collection was assembled. And he lived... more...