INTRODUCTION The number of English arithmetics before the sixteenth century is very small. This is hardly to be wondered at, as no one requiring to use even the simplest operations of the art up to the middle of the fifteenth century was likely to be ignorant of Latin, in which language there were several treatises in a considerable number of manuscripts, as shown by the quantity of them still in... more...

It is the fundamental premise of instrument-science that a device for detecting or measuring a physical quantity can be based on any phenomenon associated with that physical quantity. Although the instrumentation of electrostatics in the 18th century, for example, relied mainly on the phenomena of attraction and repulsion and the ubiquitous sparks and other luminosities of frictional electricity, even... more...

CHAPTER I The youngish-looking man who so vigorously swung off the train at Restview, wore a pair of intensely dark blue eyes which immediately photographed everything within their range of vision—flat green country, shaded farm-houses, encircling wooded hills and all—weighed it and sorted it and filed it away for future reference; and his clothes clung on him with almost that enviable fit found... more...

The Wright Brothers’ Aeroplane By Orville and Wilbur Wright THOUGH the subject of aerial navigation is generally considered new, it has occupied the minds of men more or less from the earliest ages. Our personal interest in it dates from our childhood days. Late in the autumn of 1878 our father came into the house one evening with some object partly concealed in his hands, and before we could see... more...

The Early Negro Convention Movement. With the period immediately following the Second War with Great Britain, begins a series of events which indicate a purpose of the nation to make the condition of the free man of color an inferior status socially and politically. That this was resisted at every step, revealed the national aim and purpose. The protest against prescription in the Church which had... more...

INTRODUCTION I The development of Tennyson's genius, methods, aims and capacity of achievement in poetry can be studied with singular precision and fulness in the history of the poems included in the present volume. In 1842 he published the two volumes which gave him, by almost general consent, the first place among the poets of his time, for, though Wordsworth was alive, Wordsworth's best... more...

"You ought to buy it," said my host; "it's just the place for a solitary-minded devil like you. And it would be rather worth while to own the most romantic house in Brittany. The present people are dead broke, and it's going for a song—you ought to buy it." It was not with the least idea of living up to the character my friend Lanrivain ascribed to me (as a matter of fact,... more...

"Oh, there IS one, of course, but you'll never know it." The assertion, laughingly flung out six months earlier in a bright June garden, came back to Mary Boyne with a sharp perception of its latent significance as she stood, in the December dusk, waiting for the lamps to be brought into the library. The words had been spoken by their friend Alida Stair, as they sat at tea on her lawn at... more...

CHAPTER 1. INTRODUCTORY. Natural Advantages of the Territory of the Roman Empire.—Physical Decayof that Territory.—Causes of the Decay.—Reaction of Man on Nature.—Observation of Nature.—Uncertainty of Our Historical Knowledge ofAncient Climates.—Uncertainty of Modern Meteorology.—Stability ofNature.—Formation of Bogs—Natural Conditions Favorable to... more...

CHAPTER I MARY WALLINGFORD At the beginning of the Civil War there was a fine old residence on Meeting Street in Charleston, South Carolina, inhabited by a family almost as old as the State. Its inheritor and owner, Orville Burgoyne, was a widower. He had been much saddened in temperament since the death of the wife, and had withdrawn as far as possible from public affairs. His library and the past had... more...