Audio Books

Aids to Forensic Medicine and Toxicology

Robertson, W.G. Aitchison
A 1922 source-book for British criminal pathologists, this will be of particular interest to fans of popular police forensics television shows, films, and murder mysteries.

Tree-Dwellers, The

Dopp, Katharine Elizabeth
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. Each lesson begins by posing a few questions for the child to think about, then factual information about these early humans is presented in story form using language a 6-7 yr old child can easily read and understand, followed by suggested activities that will help the child to experience first-hand some of the points presented in the story. The book also contains suggestions and references for teachers to aid in the successful use of the text.

Twentieth Century Inventions: A Forecast

Sutherland, George
This work from 1901 predicts what technological developments will manifest in the twentieth century. The author, a technical journalist, presents ideas for inventions and new developments in the areas of power, transportation, agriculture, mining, domestic applications, electronic devices, warfare, music, art, and news. Many have come to pass. All of them provide an interesting look into how the next century was imagined and what challenges were anticipated for the progress of society.
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Nature's Miracles: Familiar Talks on Science, Vol. 1.

Gray, Elisha
Elisha Gray (August 2, 1835 – January 21, 1901) was an American electrical engineer who co-founded the Western Electric Manufacturing Company. Gray is best known for his development of a telephone prototype in 1876 in Highland Park, Illinois and is considered by some writers to be the true inventor of the variable resistance telephone, despite losing out to Alexander Graham Bell for the telephone patent.

Behavior of the Honey Bee in Pollen Collecting, The

Casteel, D. B.
The value of the honey bee in cross pollinating the flowers of fruit trees makes it desirable that exact information be available concerning the actions of the bee when gathering and manipulating the pollen. The results recorded in this manuscript are also of value as studies in the behavior of the bee and will prove interesting and valuable to the bee keeper. The work here recorded was done by Dr. Casteel during the summers of 1911 and 1912.

Experiments and Observations on Different Kinds of Air

Priestley, Joseph
Joseph Priestley, FRS (13 March 1733 (O.S.) – 6 February 1804) was an 18th-century English theologian, Dissenting clergyman, natural philosopher, chemist, educator, and political theorist who published over 150 works. In “Experiments and Observations on Different Kinds of Air,” he reviews experiments with gases. A common theme in this work is measuring the volumes of gases held in glass tubes, and their increase or decrease when exposed to other substances. He also tests the effects of gases on mice, plants and insects.
Priestley demonstrated that fixed air (now known as CO2) can be produced from several reactions including alcoholic fermentation, combustion and a mixture of oil of vitriol and chalk (sulfuric acid and calcium oxide). He also showed that it is soluble in water, and that its toxic effects can be reduced when agitated in water. In other experiments, he showed that combinations of gases can mix to form a smaller volume than the sum of both separate gases, as when he combined common air (atmospheric air) with nitrous air (nitric oxide, NO).
For some experiments, Priestley tests whether the properties of gases change when stored. He finds that inflammable air (hydrogen, H2 or a mixture of hydrocarbons) becomes less flammable but retains its toxic properties.
Also interested in electricity, Priestley tests the effects of gases on sparks. While he finds that gases are generally good insulators, he also finds that some gases change the colors of electric sparks. He also discovers that some mixtures of air explode in their entirety, while others must be combined with common air in order to burn.
Priestley uses several terms common to the study of natural philosophy, or chemical experiments as known today. Some of the terms are parts of obsolete theories or are old names for chemicals now given standard names. To better understand Priestley's observations, the following terms are defined according to their present names.

Apis Mellifica

Wolf, C.W.
Wolf's essay considers the homeopathic medicine Apis Mellifica, or the poison of the honey bee, as a therapeutic agent based on his experience as a practicing physician.

Story of the Atlantic Telegraph, The

Field, Henry M.
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.

Insect Stories

Kellogg, Vernon
These 13 essays explore the fascinating world of insects all around us. Vernon Kellogg, an eminent entomologist and natural story teller, and his little friend Mary, start by collecting Tarantula Holes and proceed to observe spiders, ant lions, ants, wasps and many other tiny creatures in their daily life. Each creature has a wonderful story and it is told most entertainingly.

Autobiography of an Electron, The

Gibson, Charles R.
"While many scientific men now understand our place in the universe, we electrons are anxious that every person should know the very important part which we play in the workaday world. It was for this reason that my fellow-electrons urged me to write my own biography. I am pleased to say that my relationship with the scribe who has put down my story in the following pages has been of the most friendly description. I have allowed him to place what he calls "The Scribe's Note" at the beginning of each chapter, but it will be understood clearly that these are merely convenient embellishments, and that I am responsible for the story of my own experiences." (Introduction adapted from the text)

Bird Study Book, The

Pearson, Thomas Gilbert
Do you enjoy birdwatching? Would you like to learn a little more about the early conservations efforts to protect wild birds? In the Preface to The Bird Study Book, Pearson tells us “This book was written for the consideration of that ever-increasing class of Americans who are interested in acquiring a greater familiarity with the habits and activities of wild birds. Attention is also given to the relation of birds to mankind and the effect of civilisation on the bird-life of the country. ” An avid ornithologist, T. Gilbert Pearson (1873-1943) was a co-founder in 1905 of the National Association of Audubon Societies of which he was first secretary and then president for many years. He was also a pioneer of the conservation movement in the United States, international bird protection and broad nature education for school-aged children. (Audubon Magazine. 42: 370–371. Nov-Dec 1943)

Girl Aviators and the Phantom Airship, The

Burnham, Margaret
Teenagers Peggy Prescott and her brother Roy share a love of aviation that they inherited from their late father. Mr. Prescott had always dreamed of building an aeroplane that would be free of the defects of planes already invented. Peggy and Roy manage to build a plane starting with the framework their father had begun. Peggy christens it ‘The Golden Buttefly’ and she and Roy are determined to enter it in a young aviator’s contest for a prize of $5000. The Prescotts need the money desperately to save the home they share with their aunt which is about to be taken from them by the rather nasty banker, Mr. Harding. Peggy and Roy along with their best friends, Jess and Jimsy Bancroft – also sister and brother, experience many adventures – many of them while flying the Golden Butterfly. A kidnapping, missing jewels and contact with some desperate characters are just some of what the Prescotts encounter in their Long Island village of Sandy Bay. There’s never a dull moment for these two as they pursue their dream of flying.

Bilingual Versions - Alice's in Wonderland (English – Spanish)

Lewis Carroll
This book tells of a girl named Alice falling through a rabbit hole into a fantasy world populated by peculiar, anthropomorphic creatures.

English Audio Books

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