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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 Early Christians in Rome
by H. D. M. Spence-JonesOf the five Books which make up this work, the First Book relates generally the history of the fortunes of the Church in Rome in the first days.The foundation stories of the Roman congregations were laid largely by the Apostles Peter and Paul—Peter, so with one accord say the earliest contemporary writers, being the first apostle who preached in Ro..
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..
Youth, Vol. I, No. 7, September 1902
by Herbert Leonard CogginsIt was in 1681 that the great Quaker completed the negotiations for the grant of Pennsylvania, and in the next year the first work of the building of the Proprietary House was begun. The plat chosen for its site was the one bounded by Front, Chestnut, Letitia, and High streets, the last now being named Market. In the place of the little cottage and..
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..
Dairy Disagreeables Busy the Bacteriologists
by F. H. HallThe flavor of good milk and cream, then, is an inherent quality due to the normal constituents of the milk; the flavors of butter, both good and bad, except that due to the fat and to odors absorbed by the milk, are held to be the result of bacterial action; the fundamental flavors of cheese are probably due to chemical decomposition, started by un..
The Hole Book
by Peter NewellTom Potts was fooling with a gun(Such follies should not be),When—bang! the pesky thing went offMost unexpectedly!Tom didn’t know ’twas loaded, andIt scared him ’most to death—He tumbled flat upon the floorAnd fairly gasped for breath.The bullet smashed a fine French clock(The clock had just struck three),Then made a hole clean through the wall,As ..