Ralph Hartley (18 results)

Condition: Very Good. Shipped within 24 hours from our UK warehouse. Clean, undamaged book with no damage to pages and minimal wear to the cover. Spine still tight, in very good condition. Remember if you are not happy, you are covered by our 100% money back guarantee.

kartoniert. Condition: Gut. 143 S., 41 Bilder, Size: 8°.

SingleIssueMagazine. Condition: Very Good-. Vol. 25, no. 1. Pulp magazine. Cover art by Blakeslee. Includes "Death Wears No Medals" (novel) by William Hartley; "The Return of the Damned" (novel) by Robert Sidney Bowen; "Wings for Fighting Men" (novel) by O. B. Myers; "Action for Aces" by William Porter; "Blood on the Swastika!" by Ralph Oppenheim; "Sky Ride to Hell" by Hal White. Special Sky Features: "Story Behind the Cover" & "Asemblit" by Frederick Blakeslee. Rear foredge chipped with loss at lower corner; a little bent from poor stacking. Book.…

PAPERBACK. Paperback edition. 330pp, quarto. Interagency Agreement No. 1102-0002-93-023. tight binding, clean throughout, Very Good.

kart.. 0. 8°, S.: 143, kart., Ecken und Ränder etwas berieben und fleckig, Seitenränder etwas angegilbt sonst gut erhalten, Sprache: Deutsch 0,184 gr.

Hard Cover. Condition: Very Good. Dust Jacket Condition: Good. First Edition. Black bds with gilt title to spine. Bump to spine ends. Usual library markings. Text Very Good. Unclipped dustjacket sellotaped to bds and top and bottom edges. Tears to jacket spine ends. Rub and minimal losses to jacket corners. Fading/rubbing to jacket spine. Jacket a little grubby. Rubbing to jacket edges. Ex-Library.…

Hardcover. Condition: Fine. 1st thus. Fine condition, octavo, quarter brown leather, brown cloth boards, gilt decorated front and rear, four raised bands and gilt title and decoration to spine, all edges gilt, silk ribbon marker, decorated end paper, xxv plus 461 pages including index of first lines. [QP]. KARLIN, Eugene (illustrator).…

Hardcover. Condition: Very Good. Dust Jacket Condition: Very Good. Edition Not Stated. A survey of the potentialities of pulse-code modulation and its adoption in communication networks. 110 pages. Size: 220mm Tall, 8vo. Book.

In-8° pp. IX-118, bross. edit.

Soft cover. Condition: Very good. No jacket. Cover is lightly worn, particularly along edges. Inside is clean and unmarked.

Hardcover. Condition: Good. 1st Edition. Folio hardcover volume with a tan cloth spine and blue cloth boards. Spine and boards intact but show edge wear. Front and rear end papers are not split or marked. Signatures are loose from spine but held by threads. There are 3 or 4 pages that are loose along with one signature to the rear. it is complete with 50 text pages 273 black and white plates and 5 color plates. Contents quite clean with no foxing or watermarks.…

Condition: New. Print on Demand pp. 132.

Hardcover. Condition: Very good. First Edition. 50p of text with a few illustration, plus Section II with 275 black and white illustrations. A few color illus. in the first section. A very good copy in black and tan cloth. gilt titles. Tan cloth is very foxed.

LeatherBound. Condition: New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. LeatherBound edition. Condition: New. Reprinted from 1918 edition. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. A perfect gift for your loved ones. Pages: 140 NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Pages: 140 Bateson, Hartley,Huchown, of the Awle Ryale, 14th century,Strode, Ralph, fl. 1350-1400.…

1st Edition. FIRST EDITION OF RALPH HARTLEY'S FOUNDATIONAL PAPER ON INFORMATION THEORY -- work that was "the single most important prerequisite" for Shannon's theory of information" (Wikipedia). Shannon acknowledged his debt to Hartley in the first paragraph of his landmark 1948 paper "A mathematical theory of communication," -- the paper in which Shannon introduced a qualitative and quantitative model of communication that solved the problem of reproducing at any given point a message originating at another point. Hartley had a way of thinking philosophically about the transmission of information, a habit that led to his unconventional method of formulating the problem of communication. Hartley "regarded the sender of a message as equipped with a set of symbols (the letters of the alphabet for instance) from which he mentally selects symbol after symbol, thus generating a sequence of symbols. He observed that a chance event, such as the rolling of balls into pockets, might equally well generate such a sequence" (Pierce, An Introduction to Information Theory, 39). "Hartley distinguished between psychological and physical considerations -- that is, between meaning and information. The latter he defined as the number of possible messages independent of whether they are meaningful. He used this definition of information to give a logarithmic law for the transmission of information in discrete messages: H = K log sn where H is the amount of information, K is a constant, n is the number of symbols in the message, s is the size of the set of symbols and therefore sn is the number of possible symbolic sequences of the specified length n. Hartley had arrived at many of the most important ideas of the mathematical theory of communication: the difference between information and meaning, information as a physical quantity, the logarithmic rule for transmission of information, and the concept of noise as an impediment in the transmission of information" (Origins of Cyberspace 316). Hartley's research led him to formulate the law upon which Shannon built, "that the total amount of information that can be transmitted is proportional to frequency range transmitted and the time of the transmission" (Wikipedia). Together with Shannon's work, the law became known as the Shannon-Hartley theorem. CONDITION & DETAILS: New York: American Telephone and Telegraph Company. Bell System Technical Journal 7, 1928, pp. 535-563. Illustrations throughout. The Hartley paper includes 7 illustrations, two photos and five figures. Full volume. Quarto. (9 x 6.25 inches; 225 x 156mm). Solidly and tightly bound in dark blue cloth; gilt-lettered at the spine. "P. Caporale" appears in small gilt in the lower right corner of the front board. Very slight scuffing around the edge tips; clean and bright inside and out. Very good condition.…

LeatherBound. Condition: New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. LeatherBound edition. Condition: New. Reprinted from 1912 edition. Leather Binding on Spine and Corners with Golden leaf printing on spine. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. Pages: 188 As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Pages: 188 Language: English.…

Leather Bound. Condition: New. Language: English. Language: English. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2025, utilizing the invaluable guidance of the original edition published many years ago in 1918. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - English, Pages:- 140, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 140 140.…

Leather Bound. Condition: New. Language: English. Language: English. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2025, utilizing the invaluable guidance of the original edition published many years ago in 1912. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - English, Pages:- 188, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 188 188.…