This is the third of three volumes. Pages number from 1 to 200a-c. Pages 158 and 159 have been repeated. The diary has been handwritten.

The Groote Eylandt journals record Tindale's first expedition. He was granted one year's leave of absence from his assistant-entomologist's duties to assist the Church Missionary Society of Australia and Tasmania as an honorary member. The South Australian Museum advanced Tindale £ 50 to purchase specimens. Of the 7,651 specimens and objects Tindale collected on Groote Eylandt, 487 were ethnographic. During this time Tindale formed an association with Maroadunei, a Ngandi tribe song-maker from Arnhem Land who introduced him to the concept of tribal boundaries. At this time the common European perception was that Aboriginal people roamed at will over the countryside as 'free wanderers'.

This journal includes the following:

• Tindale's observations on spears, fighting, mission duties, Malay song, making of fishing line, painting of objects and use of red ochre, specimen collection, and a collection of vocabularies
  
  
• a photograph of Roper River boys
  
  
• sketches
  
  
• letter from Joshua Umbereary to Tindale
  
  
• newspaper clipping dated 1938
  
  
• c.1969 postscript
  
  
• a sketch map of the west side of Gulf of Carpentaria showing tribal boundaries (page 9)
  
  

Tindale recorded vocabularies from a number of informants and published his results in 'Natives of Groote Eylandt and of the West Coast of the Gulf of Carpentaria: Part III - Languages of Eastern Arnhem Land', Transactions of the Royal Society of South Australia, 1928, Vol.52, pages 5-27 (see also AA 338/8/12 for Tindale's original Alawa vocabulary).

Tindale Tribes: Alawa; Duwal; Ingura; Mara; Ngalakan; Ngandi; Nunggubuju; Rembarunga; Wandarang.