One letter only from Ostenfeld to Bateson, 1920, mentioning his stay with Bateson and discussing various plants including Prunus; one letter only from Pearl to Bateson, 1915, re rogue peas; one letter only from Pearson to Bateson, 1912, re a paper by a third party submitted to ?'Biometrika'.

One letter from Moss to Bateson, 1912, on 'Ophrys insectifera' etc; correspondence from Mott to Bateson, 1914, discusses matters connected with 'mentally defective' people.

Correspondence to Bateson on various botanical studies, including Nolana.

Letter to Bateson enclosing 3 photographs of ananas, inscribed on the back.

Two specimens of Bougainvillea lateritia attached to small folded pieces of paper. On the 'cover' of the papers (in an unidentified hand) are brief manuscript accompanying notes, with dates.

Correspondence with W.J.B. Van der Weyer concerning the latter's buddleia crosses and possible publication of the work.

Contents of an envelope so inscribed. Correspondence to Bateson from R.P. Gregory and C.C. Hurst.

2pp manuscript notes, so titled, in an unidentified hand.

Contents of an envelope so inscribed. Three typescript bulletins from the USA: one from the University of Wisconsin Pharmaceutical Exp[erimental] Sta[tion], the others from conferences. They report on experimental work carried out on peppermint oil.