Simon, G A, L'Abbé Manuscript. Clarifies biographical points in the career of Laplace; on his many notes about the childhood and family of Laplace, and sources used; copy of replies from Pearson on his desire to publish a complete genealogy of the Laplace family using their joint research findings and acknowledging Simon as co-author, and about reproducing a portrait of Laplace originally published in <i>Ouvres de Laplace</i>, volume 1; Simon's agreement to Pearson's proposals, including translation of work into English; enclosing a genealogical table; returning correction proofs; and having nothing further to add to proofs. 1929