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Papers (photocopies and pre-prints, unmarked) consulted in the preparation of Crick and L E Orgel, "Directed Panspermia," Icarus, 19 (1973), 341-6.

The papers are:

Shiv S Kumar, "Planetary systems" (preprint, to be published in Saslaw and Jacobs, eds., The Emerging Universe);

John Barth, "Night-Sea Journey" (supplied, with a covering note, by Horace Judson);

Dicke, "The age of the galaxy from the decay of uranium" (1969);

Iben and Faulkner, "On the age and initial helium abundance of extreme population II stars" (1968);

Selections from Fairbridge, The Encyclopedia of Atmospheric Sciences and Astrogeology (1967);

Gold, "Cosmic garbage" (1960);

Gold, "Is biology on a cosmical scale?" (1960, mimeograph);

Sneath, "Longevity of micro-organisms" (1962, brief notes attached);

Sagan, "Biological contamination of the Moon" (1960).

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