Thinks "mum" comes from shutting the mouth repeatedly as a sign of wanting to eat.

Having read CD’s article in Mind ["Biographical sketch of an infant", Collected papers 2: 191–200], AHS questions CD about the child’s first attempts at speech, hoping to throw light on the origin of language.

Thanks CD for statement about children’s speech. Asks permission to quote him in his forthcoming book.

Thanks CD for permission to quote his comments; mentions some of his conclusions with regard to the early speech of children.

Thanks for [newspaper] account of American Philological Association meeting.