The first of six volumes, this volume covers in extensive detail the topics of "The Evolution of Modesty", "The Phenomena of Sexual Periodicity", and "Auto-Eroticism". Written as an anthropological and psychological study from the point of view of Havelock, the famous British sexologist of the late 19th century, who was also a physician and social reformer.

An autobiography of Helen Keller published when the author was still in her early 20's. The narrative reveals how her mind developed and matured until she began her studies at Radcliffe College

The World I Live In by Helen Keller is a collection of essays that poignantly tells of her impressions of the world, through her sense of touch, smell, her imagination and dreams. My hand is to me what your hearing and sight together are to you. In large measure we travel the same highways, read the same books, speak the same language, yet our experiences are different. All my comings and goings turn on the hand as on a pivot. It is the hand that binds me to the world of men and women. The hand is my feeler with which I reach through isolation and darkness and seize every pleasure, every activity that my fingers encounter...

"There may seem to be a disappointing lack of prophesy in a book avowedly dealing with the future; but since I believe the women’s movement to be a seeking for knowledge and good, to show what is reasonable and good in the movement is to show what will persist and triumph. Through all our faults and mistakes, we women are aiming at better understanding and co-operation with men, and a better adaptation to one another of conditions and persons. We are having to hammer out for ourselves the right principles of government...

Jules Henri Poincaré (1854–1912) was one of France’s greatest mathematicians and theoretical physicists, and a philosopher of science. As a mathematician and physicist, he made many original fundamental contributions to pure and applied mathematics, mathematical physics, and celestial mechanics. He was responsible for formulating the Poincaré conjecture, one of the most famous problems in mathematics. In his research on the three-body problem, Poincaré became the first person to discover a chaotic deterministic system which laid the foundations of modern chaos theory...

Two years, two months and two days! This is what forms the time line of one man's quest for the simple life and a unique social experiment in complete self reliance and independence. Henry David Thoreau published Walden in 1884. Originally drafted as a series of essays describing a most significant episode in his life, it was finally released in book form with each essay taking on the form of a separate chapter. Thoreau's parents were in financial straights, but rich intellectually and culturally...

AMUSEMENTS IN MATHEMATICSby HENRY ERNEST DUDENEYPREFACEIn issuing this volume of my Mathematical Puzzles, of which some have appeared in periodicals and others are given here for the first time, I must acknowledge the encouragement that I have received from many unknown correspondents, at home and abroad, who have expressed a desire to have the problems in a collected form, with some of the solutions given at greater length than is possible in magazines and newspapers. Though I have included a few old puzzles that have interested the world for generations, where I felt that there was something new to be said about them, the problems are in the main original...

Cyrus W. Field had a dream: to link the Old World of Britain and Europe to that of the New World of North America by a telegraph cable stretching across the great Atlantic Ocean. It took him thirteen years, a lot of money, and many men and ships and cable to make it happen. He wanted to bring the world together and make it a smaller place; to forge alliances and achieve peace. This is his story. (Introduction by Alex C. Telander)

A very wise physician has said that “every illness has two parts—what it is, and what the patient thinks about it.” What the patient thinks about it is often more important and more troublesome than the real disease. What the patient thinks of life, what life means to him is also of great importance and may be the bar that shuts out all real health and happiness. The following pages are devoted to certain ideals of life which I would like to give to my patients, the long-time patients who have especially fallen to my lot.

"In the following Letters I have endeavoured to exhibit in their true light the singular natural phenomena of which old superstition and modern charlatanism in turn availed themselves—to indicate their laws, and to develop their theory." In 14 letters, British physiologist Herbert Mayo is giving the reader an overview of popular superstitions of previous times, like vampirism, somnambulism or even ghost sightings, and exposing how in previous times they were treated with fear, ignorance and intolerance, often leading to crime, while he endeavours to give rational explanations for the phenomena with the goal to find treatments and cures for the afflicted. - Summary by Sonia