Ecklund, E. H. and C. P. Scheitle. 2007. Religion among Academic Scientists: Distinctions, Disciplines, and Demographics. Social Problems 54: 289–307.
Gallup, G. Jr. and D. M. Lindsay. 1999. Surveying the Religious Landscape: Trends in U.S. Religious Beliefs. Harrisburg, PA, Morehouse Publishing.
Larson E. Summer for the Gods: The Scopes Trial and America's Continuing Debate Over Science and Religion. (Basic Books, 1997).
Some findings:
- 517 members of the National Academy of Sciences queried:
1) Belief in "personal god":
7% responded in the affirmative
72.2% expressed "personal disbelief"
20.8% expressed "doubt or agnosticism"
2) Belief in the concept of human immortality (life after death):
7.9% accept
76.7% reject