W e seeds (8 resultados)

Condición: As New. Unread book in perfect condition.

Condición: As New. Unread book in perfect condition.

Condición: New.

Condición: New.

Soft cover. Condición: Very Good. Estado de la sobrecubierta: Very Good. Complete issue of Nature, Vol. 172, No. 4382, Saturday, October 24, 1953, pp. ccxciv-ccc, 737-780, ccci-cccviii, with supplement pp. i-xvi. Wilkins paper on pp. 759-762. Very good condition with stamp of British Whiting Research Library on upper right corner of cover. Wilkins discovered the double helix structure of DNA. Wilkins (1916-2004) shared the Nobel prize with Watson and Crick in 1962. GM 256.4. Considered one of the six milestone papers on the structure of DNA.…

1st Edition. FIRST EDITION OF A NUMBER OF IMPORTANT PAPERS. ALSO INCLUDED: Armenteros, R.; Barker, K. H. "Decay of Neutral V-Particles" WITH Mackay, D. M., Calculating Machines and Human Thought WITH Bragg, W. L. Elimination of the Unwanted Image in Diffraction Microscopy WITH Martyn, D. G. The Theory of Magnetic Storms and Auroras. CONDITION & DETAILS: London: Macmillian & Sons. Complete volume. 4to (10.25.x 7.5 inches; 256 x 186mm). 1076 pp. & lv name and title index. Ex-libris bearing only discrete stamps on the flyleaf, pastedown and title page; no spine markings whatsoever. Bound in blue cloth, gilt-lettered at the spine. Solidly and tightly bound; light rubbing at the edges. Very clean inside and out. Very good condition.…

Soft cover. Condición: Very Good. In: Nature, Vol. 167, No. 4254, May 12, 1951, pp. 759-760, pp. 761-762. London: Macmillan, 1951. Offered is Very Good+ entire issue disbound from volume of Nature with spine wear, minimal soil covers, small library stamp front cover. 8vo. Paperback. Very Good+.Francis Crick , James Watson and Maurice Wilkins were awarded the Nobel Prize in Physiology or Medicine in 1962. In the words of the Nobel Committee "For their discoveries concerning the molecular structure of nucleic acids and its significance for information transfer in living material". //// DW ////Ask for pictures.…

Soft cover. Condición: Very Good. 1st Edition. 7 pp. Original wrappers. Very Good. First Edition. SIGNED BY MAURICE WILKINS AND BY RAYMOND GOSLING, on the front wrapper. At a meeting of the Faraday Society in May 1950, Rudolf Signer "gave out samples of his best [DNA], and Wilkins took some home to King's. A few days later, he was preparing part of this DNA in highly viscous solution for the ultraviolet studies he was doing. Unexpectedly, he noticed that every time he touched the stuff with the tip of a glass rod and then drew the rod away, 'I had spun a very thin fibre of DNA, almost invisible, like a filament of spider web.' The fibres seemed so perfect and uniform that the molecules in them must have been neatly aligned alongside one another. Examined under a microscope, in polarized light, the fibres behaved as though they were made up of well-ordered crystals. So Wilkins took the fibres to a graduate student in the unit, Raymond Gosling, who was doing the crystallography with rams' sperm and had borrowed the use of an antiquated x-ray apparatus in a lead-lined basement of the chemistry department. Several dozen of Wilkins's fibres had to be bundled together, in a tiny tungsten-wire frame where they could be tightened like a violin bow, to constitute a large enough specimen for the soft focus of the x-ray tube. Wilkins and Gosling remembered that Bernal, fifteen years before, had got the first good x-ray patterns from protein crystals by keeping them wet. Accordingly, they maintained the DNA fibres at high humidity. They got striking patterns, with many spots, sharp and detailed, far better than ever before seen from DNA, and for the first time unmistakably from a substance in crystalline form. . . . That series of diffraction pictures taken in May or June of 1950 provided the one Wilkins showed at the meeting in Naples, a year later, that galvanized Watson's enthusiasm for DNA and x-ray crystallography" (Judson, Eighth Day of Creation, expanded ed., pp. 78-79). Olby, The Path to the Double Helix, pp. 332-335 (including an illustration taken from Wilkins and Gosling's paper). Maurice Wilkins shared the Nobel Prize in 1962 in Physiology or Medicine with Francis H. C. Crick and James D. Watson "for their discoveries concerning the molecular structure of nucleic acids and its significance for information transfer in living material." NOTE: Another copy--also signed by Wilkins and Gosling--sold for $2400 (buyer's premium included) on April 6, 2017, at the Pacific Book Auctions sale 611 (lot 239). Signed by Author(s).…