Bell (Alexander Graham) "On the Production and Reproduction of Sound

Bell (Alexander Graham) "On the Production and Reproduction of Sound by Light", in The American Journal of Science, third series, vol.20, pp.305-324, library half calf, crudely rebacked, 1880 § Boltwood (Bertram B.) "On the Life of Radium", in The American Journal of Science, fourth series, vol.25, pp.493-506, library half morocco, 1908 § Lull (Richard Swann) "The Cretaceous Armored Dinosaur, Nodosaurus textilis Marsh", in American Journal of Science, fifth series, vol.1, pp.96-126, 4 plates, title and final f. browned, spine sunned, library cloth, 1921, ex-library copy with ink-stamps, some rubbing and wear, New Haven; and other volumes from the same journal with articles on mineralogy, geology, palaeontology, and fossils, 8vo (10) *** The first mentioned is a landmark memoir devoted to the photophone, an invention designed to transmit sound through a beam of light. Bell describes a wireless optical communication system based upon the modulation of light, now recognized as a direct precursor to modern optical communications and fiber-optic transmission technologies. The third mentioned text represents the first comprehensive scientific study of the dinosaur Nodosaurus, focusing particularly on its dermal armor, defensive structures, and skeletal organization. One of the other volumes included has William Diller Matthew's "Fossil Vertebrates and the Cretaceous-Tertiary Problem" where he analyses extinction patterns and faunal renewal, proposing a global evolutionary framework which integrates environmental and climatic factors.

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