Irwin keith g (6 Ergebnisse)

Hardcover. Zustand: Good. No Jacket. Missing dust jacket; Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Cloth. Zustand: Very Good. No Jacket. Reprint. ix, 653 pp. Eighth printing. Light rubbing to the cover edges. The binding is tight and square, and the text is clean. Keith G. Irwin (illustrator).

Hardcover. Zustand: Acceptable. Worn, with tears and edge wear. Sixth Printing. The book's dust jacket is worn with noticeable tears and edge wear, indicative of its use over the years. The binding remains intact, though the cover shows signs of aging. The pages are yellowed but free from inscriptions or markings. Overall, the book is in fair condition, suitable for collectors interested in vintage educational materials. Keith G. Irwin (illustrator).…

Hardcover. Zustand: Very Good. Zustand des Schutzumschlags: Good. 1st Edition. THE 365 DAYS: THE STORY OF OUR CALENDAR, Keith G. Irwin, illustrated by Guy Fleming, hardcover with unclipped dust jacket, first edition, stated first printing, 1963. BOOK CONDITION: very good. The text block is in near fine condition with no tears, dog-ears, or marks. There is a bookplate affixed inside the front cover. The blue cloth boards are in good condition (lightly bumped spine and one corner, slightly faded areas along the edges). The dust jacket is in good condition (crinkled along top and bottom edges, age-toned inside and out). 8 ½ x 5 ¾, 182 pages, 15 ounces XX [From the inner flaps] "MAKING A CALENDAR is probably the oldest scientific research project in history. A good calendar is a first essential of civilization. Yet a perfect calendar, as Professor Irwin explains in this authoritative and human history, seems unattainable. Fishermen must know when the tides rise and fall, hunters when their quarry migrates, herdsmen when their flocks breed, farmers when to plant seed. There are three obvious ways to keep this essential running record: by days (the rotation of the earth on its axis), by months (the revolution of the moon around the earth), and by years (the revolution of the earth around the sun). All three have to be used together to take care of the many cycles of nature. The trouble is that they will not fit when combined. The day varies in length itself, and will not divide evenly into either the lunar month or the solar year. And the lunar month misses by far an easy connection with the year. This vital need to reconcile the irreconcilable is the story of the calendar. It is a tale rich in human drama, for the problem has challenged great men through the ages. Here is recounted the romantic story behind the first good calendar, created 5000 years ago in Egypt by Thoth, an early scientist and physician who, centuries later, would be honored as a hero-god. He had the year beginning at the time in fall when night and day are equal. At that time in Egypt the Nile floods are subsiding and planting can begin. From that beginning for the year he created a practical calendar of remarkable precision. Thousands of years afterwards, Julius Caesar — who was painfully aware of the inadequacies of the old Roman lunar calendar — adapted the calendar of Egypt. Later the Emperor Constantine fitted into it Moses' scheme of seven-day weeks, and Pope Gregory made a final adjustment of leap year to set our present calendar almost exactly accurate. Almost. In 3000 years it would be off by about one day. Modern scientists have found nature's own calendars and have turned our calendar backward, to tell how long ago the glaciers melted, when extinct animals and ancient princes lived, even what the weather was like centuries ago. Fleming, Guy (illustrator).…

Softcover. Zustand: Very Good. Single issue. Printed yellow wrappers. Contains pages 265-384pp. Yapped edges chipped and torn, spine and edges age-toned, very good. Contributions by Harrison Brown, Daniel G. Hoffman, Maurice Cramer, Max Radin, Leonard A. Nikoloric, Hillel Frimet, Harry Klepetar, Henry Steele Commager, David Morton, Martin Gumpert, Alonzon G. Grace, Gordon Keith Chalmers, Edith F. Hall, Gerhardt Mahler, Martin P. McGuire and Harold Taylor, Irwin Edman, and Rene Fueloep-Miller. …

Hardcover. Zustand: Very Good. Zustand des Schutzumschlags: Very Good. 1st Edition. This is abook about the history of the Calendar .It is an ex library book in V/G condition but it dose have the usual library stamps inside back and front . The D/W is V/G but does have slight wear to top and bottom and faint scratch mark on the front. Guy Flemming (illustrator).…