ISOTOPES. by ASTON, F.W

London: Edward Arnold. Very Good- with no dust jacket. 1924. Second Edition. Hardcover. Dark blue cloth covered boards show some edge wear. Stylized bookplate with coat of arms and name of previous owner, accession sticker for British college library as well as a sticker from Niels Bohr Library, associated with American Institute of Physics. Withdrawn stamps as well as a stamp stating that this was reserve stock and as such was probably not in general circulation. ; A tight solid book, hinges intact; B&W Illustrations; 8vo 8" - 9" tall; 182 pages .

London: Edward Arnold & Co, 1922. 1st Edition . Hardcover. Very Good/No Jacket. Dark ble cloth with gilt sp. lettering, no obvious flaws bar a few touches of trivial rubbing. viii + 152, 22 figs and a full opening Table. : tanning to endpapers plus some small patches and spots to t.p., otherwise internally clean, tight and unmarked. Very scarce and important early work on the topic. 14.5 cm x 21.5 cm

London: Edward Arnold & Co., 1922. First edition. Acceptable. 22 cm; 152 pages. Original cloth. Presentation certificate to St. Batholomew's Medical College mounted on front pastedown. Ink stamp of the college's Department of Biochemistry and Chemistry on front and rear free endpapers. Finger tear at top of spine.

London: Edward Arnold & Co, 1922. First Edition. Cloth. Very Good. First Edition. viii,152 pages. 8vo. Publisher's blue cloth gilt. Previous owner name penciled on front flyleaf. Several previous bookseller markings on pastedown endpapers (codes, prices, inventory numbers). Endpapers lightly offset (toned) as normal. A few penciled notations in the text. Boards lightly bowed, top page edges dusty. A sound copy. Cloth. Aston was awarded the Nobel Prize in Chemistry in 1922 "for his discovery, by means of his mass spectrograph, of isotopes, in a large number of non-radioactive elements, and for his enunciation of the whole-number rule." Aston was an assistant to JJ Thomson (PMM 386 - cathode rays) who in 1913 entrusted him with "the task of ascertaining the difference in atomic weights of [two forms] of neon." Interrupted by WWI, Aston after the war worked to improve Thomson's parabola experiments, devising "the mass spectrograph by which the gas traces were induced to focus themselves within a much… Read More