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...

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...

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...

Where is any author in the world Teaches such beauty as a woman's eye? Love's Labour's Lost, A. 4, S. 3. The idea of her life shall sweetly creep Into his study of imagination; And every lovely organ of her life Shall come apparel'd in more precious habit, More moving-delicate, and full of life, Into the eye and prospect of his soul. Much Ado About Nothing, A. 4, S. 1. Kindness in... more...

CHAPTER I THE SELECTION AND TESTING OF A GLASS "O telescope, instrument of much knowledge, more precious than any scepter! Is not he who holds thee in his hand made king and lord of the works of God?"—John Kepler. If the pure and elevated pleasure to be derived from the possession and use of a good telescope of three, four, five, or six inches aperture were generally known, I am certain that... more...

CHÂTELET (from Med. Lat. castella), the word, sometimes also written castillet, used in France for a building designed for the defence of an outwork or gate, sometimes of great strength or size, but distinguished from the château, or castle proper, in being purely defensive and not residential. In Paris, before the Revolution, this word was applied both to a particular building and to the... more...