With an introduction by Frank Kingdon-Ward. Kaulback accompanied Kingdon-Ward on a plant hunting expedition to Tibet in 1933, before parting company and continuing on with a third companion. This is Kaulback's account of his expedition into the virtually unexplored reaches of the Lohit Valley, nestled between India, Burma, and Tibet and a rare description of the indigenous tribes of Assam in the early part of the century.

1937, Hodder and Stoughton, third Edition. 319 pages. No dust jacket. Brown cloth boards with lettering. Clean pages with light tanning and mild foxing throughout. Top textblock edge dyed grey. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Lettering is bright and clear. Moderate tanning to spine and edges with crushing to spine ends. Visible wear marks to boards.