PDF Books in Children's Science & Nature
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Bees, Shown to the Children
by Ellison HawksWhen I was a little boy I often wished that my soldiers would come to life. I used to think how grand it would be if only I could have a city of little people on the dining-room table. Of course my dreams never came true, even though one day I had a brilliant idea, and wrapped a whole regiment of soldiers in flannel and put them in the oven, hoping..
Fabre's Book of Insects
by Mrs. Rodolph StawellWe all have our own talents, our special gifts. Sometimes these gifts seem to come to us from our forefathers, but more often it is difficult to trace their origin. A goatherd, perhaps, amuses himself by counting little pebbles and doing sums with them. He becomes an astoundingly quick reckoner, and in the end is a professor of mathematics. Another..
Wireless Telegraphy and Telephony Simply Explained
by Alfred Powell MorganWireless telegraphy, that marvelous art which has made possible the instantaneous transmission of intelligence between widely distant parts having no apparent physical connection save that of the earth, air, and water, is one of those wonders of science which appeal to the average mind as either incomprehensible or only explainable through the use ..
An Attempt to Investigate the Seat of Animal Life
by Henry CurtisThe capacity and aptitude for motion, observable in man, naturally lead us to an enquiry into the general principle of his corporeal functions. To a disquisition of which I devote the following pages. Aware of the intricacy of my subject, and that the operations of the animal body necessarily embrace agents not within the range of our senses, I can..
An Anatomical Disquisition on the Motion of the Heart & Blood in Animals
by William HarveyHarvey’s work, by which his name has been made immortal, strikingly illustrates this. He was the first to show the nature of the movements of the heart, and how the blood moved in the body. He did so by putting on one side authority, and directly appealing to observation and experiment. The completeness of the success with which this independent li..
Life Among the Butterflies
by Vance RandolphMany ancient and mediaeval writers dealt with butterflies, but the first descriptions of American species are found in the works of Linnaeus, the great Swedish naturalist who wrote about 1750, and invented the system upon which all modern classification is based. Pictures of several American butterflies were published in 1759 by Charles Clerck, who..
The A B C of Relativity
by Bertrand RussellEverybody knows that Einstein has done something astonishing, but very few people know exactly what it is that he has done. It is generally recognized that he has revolutionized our conception of the physical world, but his new conceptions are wrapped up in mathematical technicalities. It is true that there are innumerable popular accounts of the t..
The Hunting Wasps
by Jean-Henri FabreHenri Fabre’s essays on Wasps will fill three volumes in all, of which this is the first. The others will be entitled The Mason-Wasps and More Hunting Wasps. The former will include the chapters on the Common or Social Wasp. The first seventeen chapters of the present book appeared some years ago, wholly or in part, in a version of vol. i. of the S..