This work is "The Collected Papers of Bertrand Russell, Volume 8: The Philosophy of Logical Atomism and Other Essays, 1914-19", ed. John G. Slater. Please do not combine with the volume edited by David Pears, and first published in 1972 by Open Court under the title "Russell's Logical Atomism" and later reprinted in the Routledge Classics series as "The Philosophy of Logical Atomism".