This item is the second of two volumes containing summary data on the blood grouping of Aboriginal Communities.

The pages in this journal have been numbered by Birdsell. There is a continuing sequence of page numbers from volume one, consequently this volume has pages 43-61. There are 24 pages of data tables and 20 blank pages. This item was previously identified as 'Birdsell Collection Notebook 19'. 'Ecology' written on back cover and crossed out.