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 »

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 »

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 »

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 »

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 »

If they are real, then UFOs function under laws of physics we as yet do not understand: If they've come from distant parts of the galaxy, they must travel faster than light, or somehow circumvent that limitation on the upper limits of speed. UFO flying maneuvers that have been reported as sightings defy ... 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 »

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 »

Various means which favour or determine the cross-fertilisation of plants. Benefits derived from cross-fertilisation. Self-fertilisation favourable to the propagation of the species. Brief history of the subject. Object of the experiments, and the manner in which they were tried. Statistical value of ... more »

When on board H.M.S. 'Beagle,' as naturalist, I was much struck with certain facts in the distribution of the inhabitants of South America, and in the geological relations of the present to the past inhabitants of that continent. These facts seemed to me to throw some light on the origin of species ... 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 »