Theory of Valence: Langmuir and the Octet Rule, 1919

Irving Langmuir.  "The Arrangement of Electrons in Atoms and Molecules", pp 868-934, a very long and significant contribution found in The Journal of the Chemical Society, the monthly issue for June, 1919, volume XLI, no. 6.  In the original printed wrapper, in fine condition, save for some chipping at top and bottom of spine. $250

"In 1916 the American physical chemist Gilbert Newton Lewis (23rd October, 1875 - 23rd March, 1946) published his article on chemical bonding, 'The Atom and the Molecule', in which he formulated his discovery of the covalent bond. His ideas of chemical bonding were built upon by Irving Langmuir (31st January, 1881 - 16th August, 1957), an American chemist and physicist, in his 1919 paper 'The Arrangement of Electrons in Atoms and Molecules'."--Literary Encyclopedia. 

Langmuir refined the cubical atom model and "rule of eight" of Gilbert Lewis (from that 1916 "Atoms and Molecules" article in JCS) and created the cubical octet atom, the "octet theory", or the "octet rule". 

"In 1916 the American physical chemist Gilbert Newton Lewis (23rd October, 1875 - 23rd March, 1946) published his article on chemical bonding, 'The Atom and the Molecule', in which he formulated his discovery of the covalent bond. His ideas of chemical bonding were built upon by Irving Langmuir (31st January, 1881 - 16th August, 1957), an American chemist and physicist, in his 1919 paper 'The Arrangement of Electrons in Atoms and Molecules'."--Literary Encyclopedia. 

Langmuir refined the cubical atom model and "rule of eight" of Gilbert Lewis (from that 1916 "Atoms and Molecules" article in JCS) and created the cubical octet atom, the "octet theory", or the "octet rule".