MECHANICAL PRINCIPLES OF THE STEAM ENGINE. CLASSIFICATION OF ENGINES. 1. Q.--What is meant by a vacuum? A.--A vacuum means an empty space; a space in which there is neither water nor air, nor anything else that we know of. 2. Q.--Wherein does a high pressure differ from a low pressure engine? A.--In a high pressure engine the steam, after having pushed the piston to the end of the stroke, escapes into... more...

Returning from Sydney at the end of October 1890, Stevenson and his wife at once took up their abode in the wooden four-roomed cottage, or “rough barrack,” as he calls it, which had been built for them in the clearing at Vailima during the months of their absence at Sydney and on their cruise in the Equator. Mr. Lloyd Osbourne in the meantime had started for England to wind up the family affairs at... more...

PREFACE In writing the following pages I have felt very strongly one disqualification for my task. The life of my brother, Sir J. F. Stephen, was chiefly devoted to work which requires some legal knowledge for its full appreciation. I am no lawyer; and I should have considered this fact to be a sufficient reason for silence, had it been essential to give any adequate estimate of the labours in... more...

A popular and fairly orthodox opinion concerning book-collectors is that their vices are many, their virtues of a negative sort, and their ways altogether past finding out. Yet the most hostile critic is bound to admit that the fraternity of bibliophiles is eminently picturesque. If their doings are inscrutable, they are also romantic; if their vices are numerous, the heinousness of those vices is... more...

SPIRIT OF THE AGE SERIES The publishers desire to announce that it is their purpose to comprise in this series a collection of little books uniform in general style and appearance to the present volume and having for their subjects men and women, whose work and influence, in whatever field of literature or art was their chosen one, may be said to faintly reflect the spirit or tendencies of cultivated... more...

Since the appearance of this book in its original form, some seventeen years since, the construction of Railways has continued to make extraordinary progress.  Although Great Britain, first in the field, had then, after about twenty-five years’ work, expended nearly 300 millions sterling in the construction of 8300 miles of railway, it has, during the last seventeen years, expended about 288... more...

"Of the making of books there is no end." This seems especially true of steam-turbine books, but the book which really appeals to the operating engineer, the man who may have a turbine unloaded, set up, put in operation, and the builders' representative out of reach before the man who is to operate it fully realizes that he has a new type of prime mover on his hands, with which he has... more...

CHAPTER I INTRODUCTION The indebtedness of German culture to other peoples has been the theme of much painstaking investigation. The history of German literature is, in large measure, the story of its successive periods of connection with the literatures of other lands, and hence scholars have sought with industry and insight to bound and explain such literary inter-relations. The latter half of the... more...

CHAPTER I. INTRODUCTORY. Near seven years ago, a short while before his death in 1844, John Sterling committed the care of his literary Character and printed Writings to two friends, Archdeacon Hare and myself. His estimate of the bequest was far from overweening; to few men could the small sum-total of his activities in this world seem more inconsiderable than, in those last solemn days, it did to... more...

CONNIE WILLIS Burnt Fork, Wyo., July 8, 1914. Dear Mrs. Coney,— Your letter of the 4th just to hand. How glad your letters make me; how glad I am to have you to tell little things to. I intended to write you as soon as I came back from Green River, to tell you of a girl I saw there; but there was a heap to do and I kept putting it off. I have described the desert so often that I am afraid I will tire... more...