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ZAMMARCHI, Angelo.
La Telegrafia Senza Fili Di Guglielmo Marconi. [Collezione Monografie Illustrate Serie Scientifica 1.].
Bergamo: Istituto Italiano D'Arti Grafiche-Editore, 1904..
4to. pp. 154. with half-title. 1 folding map. numerous illus., diagrams & maps. in text, incl. title vignette. original wrs. (previous owners rubberstamp on front free end-paper, spine sunned). later ms. paper spine label. First Edition. A year after Hertz's death, Marconi embarked on a series of experiments near Bologna, establishing a wireless communication over a distance of more than a mile within twelve months. In 1896 he took out in the UK the first patent for wireless telegraphy based on Hertz's discoveries, but exploiting radiations of a much longer wavelength. His first signals were at first transmitted over one hundred yards, but by December 1901 he had sent his first transatlantic telegraph signals from Poldu in Cornwall to St. John's, Newfoundland.
$400 USD Book Number: SMMTZAMM21 Order / Enquire
ZAVALLA, Justo P.
The Canning of Fruits and Vegetables Based On The Methods In Use In California, With Notes On The Control Of The Microorganisms Effecting Spoilage.
New York: John Wiley & Sons, Inc. & London: Chapman & Hall, Limited, 1916..
8vo. pp. xii, 214. frontis. & numerous text illus. (some full-page). cloth. Royal Society of Arts rubberstamps. First Edition.
$75 USD Book Number: elala4253 Order / Enquire
ZENNECK, J[onathan Adolf Wilhelm.
Wireless Telegraphy.Translated From The German By A.E.Seelig.
New York: McGraw-Hill Book Company, Inc. & London: Hill Publishing Co., Ltd., 1915 [i.e.1918]..
8vo. pp. xx, 443. with half-title. many text illus. & diagrams. biblio. original cloth (bit shaken, extremities frayed, library bookplate with release stamp). First Edition in English, Fourth Impression.
$165 USD Book Number: SNNreZEN96 Order / Enquire
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