The Most Important Biological Discovery of the Twentieth Century:

The DNA Molecule Described, Signed twice by Francis Crick

"We wish to suggest a structure for the salt of deoxyribose nucleic acid (D.N.A.). This structure has novel features which are of considerable biological interest...

...It has not escaped our notice that the specific pairing we have postulated immediately suggests a possible copying mechanism for the genetic material."

-James Watson and Francis Crick

Watson, James D., Crick, Francis. "Molecular Structure of Nucleic Acids". WITH: Wilkins, M.H.F., Stokes, A.R., Wilson, H.R.,  "Molecular Structure of Deoxypentose Nucleic Acids". WITH: Franklin, Rosalind E., Gosling, R.G.,  "Molecular Configuration in Sodium Thymonucleate"; pp. 737-741 in Nature, April 25, 1953.  Also with: Watson, James D., Crick, Francis.  "Genetical Implications of the Structure of Deoxyribonucleic acid" in Nature, May 30, 1953.  The complete volume 171, January 3, 1953, to June 27, 1953.  London: Macmillan, 1953. Octavo, modern red cloth.  Ex-libris, with gilt stamp to front cover.   SOLD.

First printing of the announcement of the discovery of the structure of DNA, with important related papers by Wilkins, Stokes, Wilson, Franklin, and Gosling. SIGNED TWICE BY FRANCIS CRICK.  Internally clean and crisp.  A rare and most important series of papers.