Treatise on Light was published in 1690 and is probably the largest scientific volume on light published before Newton's Opticks. The book explains how light travels (i.e., that it has a certain velocity), and what happens when it hits a surface (refraction and reflection). A large portion of the book is devoted to the double refraction occurring in Iceland chrystal, and all drawn conclusions are proved geometrically. Christiaan Huygens (1629 - 1695) was a prominent physicist and astronomer. His main discoveries are the centrifugal force, collision laws for bodies and the argument that light consists of waves...

Prof. Hiram Bingham of Yale Makes the Greatest Archaeological Discovery of the Age by Locating and Excavating Ruins of Machu Picchu on a Peak in the Andes of Peru.There is nothing new under the sun, they say. That is only relatively true. Just now, when we thought there was practically no portion of the earth's surface still unknown, when the discovery of a single lake or mountain, or the charting of a remote strip of coast line was enough to give a man fame as an explorer, one member of the daredevil explorers' craft has "struck it rich...

Florence Augusta Merriam Bailey (August 8, 1863 - September 22, 1948) was an American ornithologist and nature writer. She started observing bird behavior at a time when most bird study was based on collections and skins. By 1885, she began to write articles focusing on protecting birds. Her introduction of a birdwatching field guide, aimed at living birds, is considered the first in the tradition of modern bird guides. She wrote the first of these at the age of 26, initially as a series of notes in the Audubon Magazine and later as books. In "A-Birding on a Bronco," she writes an engaging memoir about her several trips to study birds on a ranch in California in the late 1800's.

The spiritual classic The Greatest Thing In the World is a trenchant and tender analysis of Christian love as set forth in the thirteenth chapter of I Corinthians. The other addresses speak to other aspects of Christian life and thought.

VOCATIONAL GUIDANCE FOR GIRLSBy MARGUERITE STOCKMAN DICKSONA FOREWORDFortunate are we to have from the pen of Mrs. Dickson a book on the vocational guidance of girls. Mrs. Dickson has the all-round life experiences which give her the kind of training needed for a broad and sympathetic approach to the delicate, intricate, and complex problems of woman's life in the swiftly changing social and industrial world. Mrs. Dickson was a teacher for seven years in the grades in the city of New York. She then became the partner of a superintendent of schools in the business of making a home...

The words in this essay on positive thought sing like those in Whitman's "Leaves of Grass." The author praises joyous living and recommends certain routes to its attainment. He explores schooling (public secondary and the university), travel, and the study of nature as ways to stay buoyant during life's trials. He also praises the power of the arts (literature, music, painting, sculpture) to keep spirits soaring.

The Compleat Angler is a celebration of the art and spirit of fishing in prose and verse. Walton did not profess to be an expert with the fly, but in the use of the live worm, the grasshopper and the frog "Piscator" could speak as a master. There were originally only two interlocutors in the opening scene, "Piscator" and "Viator"; but in the second edition, as if in answer to an objection that "Piscator" had it too much in his own way in praise of angling, he introduced the falconer, "Auceps," changed "Viator" into "Venator" and made the new companions each dilate on the joys of his favourite sport.

The Faith of Our Fathers: A Plain Exposition and Vindication of the Church Founded by Our Lord Jesus Christ is a book published in 1876 by archbishop James Gibbons, which became a best-selling conversion manual in the United States, and by 1980 was in its 111th printing.(From the preface) “The object of this little volume is to present in a plain and practical form an exposition and vindication of the principal tenets of the Catholic Church. It was thought sufficient to devote but a brief space to such Catholic doctrines and practices as are happily admitted by Protestants, while those that are controverted by them are more elaborately elucidated...

THE BOY WITH THE U.S. CENSUSBY FRANCIS ROLT-WHEELERPREFACELife in America to-day is adventurous and thrilling to the core. Border warfare of the most primitive type still is waged in mountain fastnesses, the darkest pages in the annals of crime now are being written, piracy has but changed its scene of operations from the sea to the land, smugglers ply a busy trade, and from their factory prisons a hundred thousand children cry aloud for rescue. The flame of Crusade sweeps over the land and the call for volunteers is abroad...

The Library of Work and Play, OUTDOOR SPORTS AND GAMESBy CLAUDE H. MILLER, PH.B.INTRODUCTORY The human body a perfect machine--How to keep well--Outdoor sleeping--Exercise and play--Smoking--Walking Suppose you should wake up Christmas morning and find yourself to be the owner of a bicycle. It is a brand-new wheel and everything is in perfect working order. The bearings are well oiled, the nickel is bright and shiny and it is all tuned up and ready for use. If you are a careful, sensible boy you can have fun with it for a long time until finally, like the One Hoss Shay in the poem, it wears out and goes to pieces all at once...

The Art of Travel is a handbook of practical advice for the adventure seeking Victorian. We hear how to organize all steps of a voyage, from the very beginnings (qualifications of a traveller, how to organize an expedition, the perfect outfit), to the actual trip (how to choose a bivouac, huts and tents, what game to shoot - and how, dealing with (hostile) savages), until the final, hopefully successful, return of the traveller (arranging memoranda).

Margaret Fuller (1810-1850) was an American feminist, writer, and intellectual associated with the Transcendentalist movement. Her book Woman in the Nineteenth Century (1845) is considered the first major feminist work in the United States. Her life was short but full. She became the first editor of the transcendentalist journal The Dial in 1840, before joining the staff of the New York Tribune under Horace Greeley in 1844. By the time she was in her 30s, Fuller had earned a reputation as the best-read person in New England, male or female, and became the first woman allowed to use the library at Harvard College...