Whether it is true or not that not more than twelve persons in all the world are able to understand Einstein's Theory, it is nevertheless a fact that there is a constant demand for information about this much-debated topic of relativity. The books published on the subject are so technical that only a ... more »

Perhaps the most readable and accessible of the great works of the scientific imagination, The Origin of Species sold out on the day it was published in 1859. Theologians quickly labeled Charles Darwin the most dangerous man in England, and, as the Saturday Review noted, the uproar over the book quickly ... more »

WRITTEN AROUND 1902! This small volume was commenced as a review article on Professor Percival Lowell's book, Mars and its Canals, with the object of showing that the large amount of new and interesting facts contained in this work did not invalidate the conclusion I had reached in 1902, and stated in ... more »

The problem of the twentieth century is the problem of the color line.  Thus speaks W.E.B. Du Bois in The Souls Of Black Folk , one of the most prophetic and influental works in American literature.  In this eloquent collection of essays, first published in 1903, Du Bois dares as ... more »

The subject of the present volume, namely the differently formed flowers normally produced by certain kinds of plants, either on the same stock or on distinct stocks, ought to have been treated by a professed botanist, to which distinction I can lay no claim. As far as the sexual relations of flowers ... more »

During the successive reprints of the first edition of this work, published in 1871, I was able to introduce several important corrections; and now that more time has elapsed, I have endeavoured to profit by the fiery ordeal through which the book has passed, and have taken advantage of all the criticisms ... more »

From the FOREWARD: We are in the early stages of what promises to be an extended debate about the future of conflict and the future of our defense establishment. Few will deny that the winds of change are blowing as never before, driven by a radically altered geopolitical situation, an evolving information ... more »

Geoffroy Saint-Hilaire, ainsi qu'on peut le voir dans l'histoire de sa vie, écrite par son fils, avait déjà, en 1795, soupçonné que ce que nous appelons les espèces ne sont que des déviations variées d'un même type. Ce fut seulement en 1828 qu'il se déclara convaincu que les mêmes formes ne se sont pas ... more »

Few ancient works have been as influential as the Meditations of Marcus Aurelius, philosopher and emperor of Rome (A.D. 161-180). A series of spiritual exercises filled with wisdom, practical guidance, and profound understanding of human behavior, it remains one of the greatest works of spiritual and ... more »

During the seven years which have elapsed since the publication in 1868 of the first edition of this Work, I have continued to attend to the same subjects, as far as lay in my power; and I have thus accumulated a large body of additional facts, chiefly through the kindness of many correspondents. Of ... more »

MANY works have been written on Expression, but a greater number on Physiognomy, - that is, on the recognition of character through the study of the permanent form of the features. With this latter subject I am not here concerned. The older treatises,[1] which I have consulted, have been of little or ... more »

From the INTRODUCTION: The completion of the rapid transit railroad in the boroughs of Manhattan and The Bronx, which is popularly known as the Subway, has demonstrated that underground railroads can be built beneath the congested streets of the city, and has made possible in the near future a comprehensive ... more »