Teilhard's texts were published in two complementary publications, the
more philosophical-theological ones in the Oeuvres (OV), the scientif
ic ones in the L'Oeuvre Scientifique (OS).1 His letters were published
in a nonsystematic way. The publication of the Oeuvres presented them
atic compilations. The papers had their own production history, creati
ng different versions. Scientific texts were published by Teilhard in
widely dispersed journals and have been collected into L'Oeuvre Scient
ifique. The scientific status of Teilhard is related to his positions
in the scientific world and the continued use of his publications. The
influences causing different versions of theological and philosophica
l papers are analyzed. The present accessibility of the diaries and th
eir importance for a full understanding of Teilhard is elaborated.