A collection of 58 botanical studies of grasses made in 1941 while Audus was stationed in Malaya and Singapore serving with the RAF. The collection also includes printed copies of Audus's own summary documents relating to his time in captivity as a prisoner of war from 1942 to 1945 and his production of yeast in the camps to provide vitamin B1 which was deficient in their diet.

A collection of 58 botanical studies of grasses made in 1941 while Audus was stationed in Malaya and Singapore serving with the RAF. The majority have detailed sections in colour. Each page is signed with Leslie Audus's initials, LJA, formed into a smiling face.