Letter to William Osler from John Collins Warren, 58, Beacon Street, Boston, Massachusetts, USA. Acknowledges the letter announcing the coming of Monod. He had written to Arnold, the Dean of the Post-graduate School about it and Collins will look Monod up. Sends him samples of the work of the Warren family as requested by Osler. He could not get John Warren's "Mercurial Practice." The latter was President of the Humane Society of the Commonwealth of Massachusetts, position that he hold at the present time. Civilities. (Letter inserted in bound pamphlets "Papers by five generations of Warren Family, Boston")