(Box 1, Folders 1 - 21) This series contains correspondence from friends (exclusive of letters from Teilhard de Chardin) to Pierre Leroy. Arrangement is alphabetical by surname.
Photocopies of three typed and handwritten letters, one signed, in English from Pierre Teilhard to Helmut de Terra from December 5, 1934 to August 12, 1947.
(Box 1, Folders 1 - 21) This series contains correspondence from friends (exclusive of letters from Teilhard de Chardin) to Pierre Leroy. Arrangement is alphabetical by surname.
The printed materials series consists primarily of documents produced by the Association des Amis de Pierre Teilhard de Chardin S.J. and articles written and published by Teilhard scholars.