Technology & Engineering Books

Advantages of Common-Battery Operation. The advantages of the common-battery system of operation, alluded to in Chapter XIII, may be briefly summarized here. The main gain in the common-battery system of supply is the simplification of the subscribers' instruments, doing away with the local batteries and the magneto generators, and the concentration of all these many sources of current into one... more...

THE FRANCO-AMERICAN CORPS It was on a cool, starlit evening, early in September, 1916, that I first met Drew of Massachusetts, and actually began my adventures as a prospective member of the Escadrille Américaine. We had sailed from New York by the same boat, had made our applications for enlistment in the Foreign Legion on the same day, without being aware of each other's existence; and in... more...

PREFACE "Let posterity know, and knowing be astonished, that on the fifteenth day of September, 1784, Vincent Lunardi of Lucca, in Tuscany, the first aerial traveller in Britain, mounting from the Artillery Ground in London, and traversing the regions of the air for two hours and fifteen minutes, on this spot revisited the earth. In this rude monument for ages be recorded this wondrous enterprise... more...

INTRODUCTION Students of economics know that the roundabout methods of capitalistic production are far more fruitful than the direct methods of the primitive economy. As we advance, we introduce new intermediaries between the beginning and the end of production. This thought occurs to one in the study of Americanization. If we would Americanize the immigrant we must seek him out in his daily economic... more...

Mr. President, and Members of the "Central Mich. Ag'l Society:" Ladies and Gentlemen: Remote from the theatre of action in the late rebellion, Michigan has experienced comparatively few of the evils that followed immediately in its path. The usual pursuits of peaceful life, were here scarcely disturbed, and by the permission of a Gracious Providence, the industry of the inhabitants of our... more...

CHAPTER I. THE INCEPTION OF THE GRANGE When President Johnson authorized the Commissioner of Agriculture, in 1866, to send a clerk in his bureau on a trip through the Southern States to procure "statistical and other information from those States," he could scarcely have foreseen that this trip would lead to a movement among the farmers, which, in varying forms, would affect the political and... more...

FOREWORD We are not tied to a desk or to a bench; we stay there only because we think we are tied. In Montana I had a horse, which was hobbled every night to keep him from wandering; that is, straps joined by a short chain were put around his forefeet, so that he could only hop. The hobbles were taken off in the morning, but he would still hop until he saw his mate trotting off. This book is intended... more...

CHAPTER I. THE INTRODUCTION OF AIRCRAFT INTO MILITARY OPERATIONS It is a curious circumstance that an invention, which is hailed as being one of the greatest achievements ever recorded in the march of civilisation, should be devoted essentially to the maiming of humanity and the destruction of property. In no other trend of human endeavour is this factor so potently demonstrated as in connection with... more...

FOREWORD Once in awhile, maybe, twenty-five or thirty years ago, they used to pack you off during the holidays for a visit on Somebody's Farm. Have you forgotten? You went with your little round head close clipped till all the scar places showed white and you came back with a mat of sunbleached hair, your face and hands and legs brown as a nut. Probably you treasure recollections of those boyhood... more...

Our ambitious young commonwealth, in conjunction with other states comprising the great Northwest, occupies a commanding position in the industrial and economic affairs of this nation. Mines of gold and silver or forests primeval North Dakota does not have; but from the millions of fertile acres comprising our vast agricultural empire, we may reap a golden harvest every year that will exceed in wealth... more...