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 FRUIT OF THE TREE Mr. Alfred Burton, although he was blissfully and completely ignorant of the fact, stood at the door of Fate. He was a little out of breath and his silk hat was reclining at the back of his head. In his mouth was a large cigar which he felt certain was going to disagree with him, but he smoked it because it had been presented to him a few minutes ago by the client upon... more...

REPORT. On the 13th of February, A.D. 1851, one John Caphart, of Norfolk, Va., came to Boston, in pursuit of one Shadrach, alleged to be a fugitive slave and the property of John Debree, a purser in the navy, and attended by Seth J. Thomas, Esq., as counsel, made his complaint, as agent and attorney of the said owner, before George T. Curtis, Esq., U. S. Commissioner. On the evening of the 14th, the... more...

CHAPTER I. INTRODUCTION. "Grau, theurer Freund, ist alle Theorie, Und grün des Lebens goldner Baum." (Faust.) There is a saying of Hegel's, frequently quoted, that "a great man condemns the world to the task of explaining him." The condemnation is a double one, and it generally falls heaviest on the great man himself, who has to submit to explanation; and, probably, the last... more...

CHAPTER XI. THE CAUSES OF SECESSION. In preceding Chapters of this work, it has been briefly shown, that from the very hour in which the Republic of the United States was born, there have not been wanting, among its own citizens, those who hated it, and when they could not rule, were always ready to do what they could, by Conspiracy, Sedition, Mutiny, Nullification, Secession, or otherwise, to weaken... more...

Field and museum studies of the wood rats of Colorado have revealed the existence of an unnamed subspecies of Neotoma mexicana in eastern Colorado south of the Arkansas River. The characters of the new subspecies are most distinctive in the northeastern part of its range near Two Buttes and Higbee. It differs in cranial characters from N. m. fallax and N. m. inopinata and averages slightly larger, but... more...

I WILLIAM William Sylvanus Baxter paused for a moment of thought in front of the drug-store at the corner of Washington Street and Central Avenue. He had an internal question to settle before he entered the store: he wished to allow the young man at the soda-fountain no excuse for saying, "Well, make up your mind what it's goin' to be, can't you?" Rudeness of this kind,... more...

He knew the theory of repairing the gizmo all right. He had that nicely taped. But there was the little matter of threading a wire through a too-small hole while under zero-g, and working in a spacesuit! MacNamara ambled across the loading ramp, savoring the dry, dusty air that smelled unmistakable of spaceship. He half-consciously separated the odors; the sweet, volatile scent of fuel, the sharp aroma... more...

PREFACE Just as a little child holds out its hands to catch the sunbeams, to feel and to grasp what, so its eyes tell it, is actually there, so, down through the ages, men have stretched out their hands in eager endeavour to know their God. And because only through the human was the divine knowable, the old peoples of the earth made gods of their heroes and not unfrequently endowed these gods with as... more...

I. "A LADY to see you, sir." I looked up and was at once impressed by the grace and beauty of the person thus introduced to me. "Is there anything I can do to serve you?" I asked, rising. She cast me a child-like look full of trust and candor as she seated herself in the chair I pointed out to her. "I believe so, I hope so," she earnestly assured me. "I—I am in great... more...