"Opening remarks of the U.S. Delegate" presented to the Technical and
Scientific Subcommittee of the United Nations Committee on the Peaceful Uses
of Outer Space, Geneva, Switzerland
"Some Opportunities and Challenges In Science" presented at the Dedication of the Stedman Hall of Science, Central Methodist College, Fayette, Missouri
"The Purpose and Timing of the U.S. Space Program" read by John Nicolaides,
Special Assistant to the Associate Administrator for Space Science & Applications, NASA, to the Princeton University Space Conference, Princeton, New Jersey
"Statement" before the Subcommittee on Space Science and Applications and the Subcommittee on Energy of the Committee on Science and Astronautics of the US House of Representatives
"What Is Science" presented before the Committee on Science and Astronautics of the US House of Representatives during the Hearings on the NASA Authorization for FY 1968
"Statement by the U.S. Delegate" in response to Soviet statement on high altitude nuclear testing presented at the sixth meeting of the Technical Subcommittee of the Committee on the Peaceful Uses of Outer Space, Geneva, Switzerland
"Currant Program and Considerations of the Future For Earth Resources
Survey" presented at the Fifth Symposium on Remote Sensing of Environment, at the Institute of Science and Technology, University of Michigan, Ann Arbor,
Michigan