Sent from Philadelphia. The contents of this envelope of mainly anti-McCarthy literature are:

For Abolition of the Inquisitional Committees of Congress. Pamphlet by Harvey O'Connor.
The Facts about Compulsory Military Service in other Countries. Pamphlet by the National Council Against Conscription.
I.F. Stone's Weekly, June 7, 1954, Vol. 2, no. 20. 
Reprint from International Oil Worker, July 27, 1953: "Harvey O'Connor Defies Book-Burner McCarthy".
Reprint from International Oil Worker, October 26, 1953: "Federal Grand Jury Indicts Harvey O'Connor for Contempt".
Reprint from International Oil Worker, August 10, 1953: "Senate Indicts O'Connor for Defying McCarthy", and "We Support O'Connor" (An Editorial).
Depression: Hard Facts vs. Soft Soap. Pamphlet by Joseph Morton. Pacific Publishing Foundation.
"Man and the Atom" by Max Born: Introduction only by Victor F. Weisskopf. 1957.
The Gazette and Daily, York, PA., Feb. 18, 1958: "Why I Am Sailing into the Bomb Test Area" by Albert S. Bigelow.
"Petition for Redress of Grievance" by Alexander Meiklejohn, addressed to Mr. Rayburn, U.S. House of Representatives, December 12, 1957.