Numerous theories have been proposed for the causes of dancing mania, and it remains unclear whether it was a real illness or a social phenomenon. One of the most prominent theories is that victims suffered from ergot poisoning, which was known as St Anthony’s Fire in the Middle Ages. During floods and damp periods, ergots were able to grow and affect rye and other crops. Ergotism can cause hallucinations, but cannot account for the other strange behaviour most commonly identified with dancing mania...

Justus von Liebig (1803-1873) was a German chemist who made major contributions to agricultural and biological chemistry and is known for his discovery of nitrogen as an essential plant nutrient. These letters “were written for the especial purpose of exciting the attention of governments, and an enlightened public, to the necessity of establishing Schools of Chemistry, and of promoting by every means, the study of a science so intimately connected with the arts, pursuits, and social well-being of modern civilised nations.”

The [five] lectures were written primarily to be delivered at the summer sessions of the University of California, at Berkeley and at Los Angeles, in the summer of 1918. . . they are the outgrowth of almost a quarter of a century spent in work for the blind, and were written from the standpoint of a blind person, seeking to better the condition of the blind. They were addressed not to the blind, but to the seeing public, for the benefit that will accrue to the blind from a better understanding of their problems. (Extract from the Forward by Milton J. Ferguson)

Katharine E. Dopp was well-known as a teacher and writer of children’s textbooks at the turn of the 20th Century. She was among the first educators to encourage the incorporation of physical and practical activity into the elementary school curriculum at a time when such activities were becoming less commonplace in a child’s home environment. The Tree-Dwellers – The Age of Fear is the first in a series of elementary school texts written by Ms. Dopp that focus on the anthropological development of early human groups...

Here are two stores starring the always unconventional Terrestrial Diplomat, Retief. As a diplomat, Retief does not always follow procedure. Well the truth is that he almost never follows procedure but somehow his wit and strength manage to salvage most situations from the bumbling of his superiors. His sardonic approach to inter galactic negotiations in these two stories is a delight to hear. Despite everything, he manages to save the day and come out on top.

In this chilling short-story by a master of the craft, Kurt Vonnegut creates a fictional world of the future where life and death are no longer matters of individual choice or destiny. The title refers to the famous quote from Hamlet, “To be or not to be....” with “0” being pronounced as “naught.” It also refers to the eternal dilemma of life and death that face every human being at some point in their lives. Written in 1962 it is set in some unspecified time in the future, when earth has become a Utopia...

This work the author claims is indeed a true story of how he happened to be married seven times to seven different women and the rollicking, hilarious events that led (or stumbled) to the marriages and the ah–disassembling/failing/failures of each said marriage which happened oftentimes to land him in prison. The summarist finds the work a very tongue-in-cheek diatribe/lament/account of his obsessive zeal in ‘marrying the right one’, but is also the mirthful chronicle of said author’s very unconventional adventures.

Langstroth revolutionized the beekeeping industry by using bee space in his top opened hive. In the summer of 1851 he found that, by leaving an even, approximately bee-sized space between the top of the frames holding the honeycomb and the flat coverboard lying above, he was able to quite easily remove the latter, which was normally well cemented to the frames with propolis making separation hard to achieve. Later he had the idea to use this discovery to make the frames themselves easily removable...