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...

THE WOMAN OF STONE. Lurine, was pretty, petite, and eighteen. She had a nice situation at the Pharmacie de Siam, in the Rue St. Honoré. She had no one dependent upon her, and all the money she earned was her own. Her dress was of cheap material perhaps, but it was cut and fitted with that daintiness of perfection which seems to be the natural gift of the Parisienne, so that one never thought of the... 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...

PREFACE A little book on a great subject, especially when that book is one of a "series," is notoriously an object of literary distrust. For the limitations thus imposed upon the writer are such as few men can satisfactorily cope with, and he must needs ask the indulgence of his readers for his painfully-felt shortcomings in dealing with the mass of material which he has to manipulate. And more... more...

I This is the story of Margaret Hugonin and of the Eagle. And with yourpermission, we will for the present defer all consideration of thebird, and devote our unqualified attention to Margaret. I have always esteemed Margaret the obvious, sensible, mostappropriate name that can be bestowed upon a girl-child, for it is aname that fits a woman--any woman--as neatly as her proper size ingloves. Yes, the... more...

CHAPTER I. THE ORIGIN OF THE ENGLISH. At a period earlier than the dawn of written history there lived somewhere among the great table-lands and plains of Central Asia a race known to us only by the uncertain name of Aryans. These Aryans were a fair-skinned and well-built people, long past the stage of aboriginal savagery, and possessed of a considerable degree of primitive culture. Though mainly... more...

INTRODUCTION One of the first facts which strike the traveller in Palestine is the smallness of a country which has nevertheless occupied so large a space in the history of civilised mankind. It is scarcely larger than an English county, and a considerable portion of it is occupied by rocky mountains and barren defiles where cultivation is impossible. Its population could never have been great, and... more...

PREFACE. This is not so much a volume upon the Evidences of Christianity, as an examination of the Evidences of Infidelity. When the Infidel tells us that Christianity is false, and asks us to reject it, he is bound of course to provide us with something better and truer instead; under penalty of being considered a knave trying to swindle us out of our birthright, and laughed at as a fool, for... more...

INTRODUCTION One of the most remarkable facts about Ibsen is the orderly development of his genius. He himself repeatedly maintained that his dramas were not mere isolated accidents. In the foreword to the readers in the popular edition of 1898 he urges the public to read his dramas in the same order in which he had written them, deplores the fact that his earlier works are less known and less... more...

CHAPTER I ACOUSTICS Telephony is the art of reproducing at a distant point, usually by the agency of electricity, sounds produced at a sending point. In this art the elements of two general divisions of physical science are concerned, sound and electricity. Sound is the effect of vibrations of matter upon the ear. The vibrations may be those of air or other matter. Various forms of matter transmit... more...