PDF Books in Academic & Text
Refine Search
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..
First notions of logic
by Augustus De MorganWhat we here mean by Logic is the examination of that part of reasoning which depends upon the manner in which inferences are formed, and the investigation of general maxims and rules for constructing arguments, so that the conclusion may contain no inaccuracy which was not previously asserted in the premises. It has nothing to do with the truth of..
Lyrics & Legends of Christmas-Tide
by Clinton ScollardLyrics & Legends of Christmas-Tide is a collection of Christmas poems written by Clinton Scollard including the belowA BellChristmas ElvesThe Christmas AngelNazareth TownA Christmas MasqueA Song for Christmas MorningThe Christmas MinstrelsTwelfth Night SongYule at ThengelforA Yule-Tide Carol..
The Sabbath - A Sermon
by John WartonThe Sermon here presented to the Public is below all criticism. It makes no pretensions to novelty, or to merit of any kind; it is only one of the thousands which are preached every week by men, who, in the midst of evil report, labour, nevertheless, with an anxious zeal for the salvation of souls. It was composed in haste, with no inte..
Turquois mosaic art in ancient Mexico
by Marshall H. SavilleThe writer has undertaken the present study of Mexican Turquois Mosaics in honor of the approaching opening to the public of the Museum of the American Indian, Heye Foundation, the only institution devoted exclusively to the study of the aboriginal American peoples ever established; and the proximate International Congress of Americanists to be hel..
Mind and Hand: Manual Training the Chief Factor in Education
by Charles H. HamIn 1879 I read a paper before the Chicago Philosophical Society on the subject of “The Inventive Genius; or, an Epitome of Human Progress.” The suggestion of the subject came from Mr. Charles J. Barnes, to whom I desire in this public way to express my obligation for an introduction to a profoundly interesting study, and one which has given a new d..
Treatment of Cholera in the Royal Hospital, Haslar
by John WilsonOn admission the patient was immediately placed in a hot bath, from 104° to 112° of Fahrenheit, in relation to the reduction of circulatory power, and of superficial heat; diligent friction of the abdomen and extremities, according to the place and violence of the spasms, being at the same time practiced. The measure seldom failed, except in ..