One letter only from Scott to Bateson, 1926, re S.G. Navashin and matters in Russia; Sharp's correspondence to Bateson, 1909, 1914, relates to Arctia caja (Garden tiger moth) and Hawaiian insects.

Copies of correspondence of N.I. Vavilov, chiefly with Bateson, 1924. Included is brief later correspondence with Sir Daniel Hall and Gregory Bateson (Bateson's son).

Correspondence to Bateson from N.I. Vavilov, 1915-1925, re various matters including his visit to Afghanistan in 1925, and Bateson's planned visit to Russia in 1925. One letter, 1915, is pasted into a 1927 reprint by Vavilov (in German). There is also a photocopy of this letter. One letter only from Catherine Vavilov to Bateson, 1925.