A dissortation devoted to the contention that from the stone age on to the present time, and Stefansson's experiences in the Arctic, man can subsist well on an exclusive diet of meat and fish. Disproving the orthodox beliefs that diet should be varied, should include fruits and vegetables, etc. etc., Stefansson tells of primitive peoples and of his own experiment in 1928 when with another man, under the supervision of Bellevue Hospital, he subsisted for a year on meat and fish only. Last chapters deal with scurvy, with Pemmican, Stefansson's ideal concentrated food, the controversies Pemmican has engendered, etc. A book with a certain dietetic, documentary value, but of no general interest.