Hume, Robert Ernest, Thirteen Principal Upanishads, Oxford University Press, London, 1958, Original printed in 1931.
The classic translation of the thirteen major Upanisads. The text also contains scholarly commentaries. Hume's introductory essay is also quote useful.
· Keith, Authur Berriedale, The Religion and Philosophy of the Vedas and Upanisads, 2 Volumes, Harvard University Press, Cambridge, 1925.
Keith is a classic older generation scholar whose work is widely known. Part five of this text focuses upon the Upanisads and seems to argue that they are largely a development of Brahmanic speculation. These chapters are a useful yet extremely opinionated interpretation (isn't everything!) of the texts.
· Radhakrishnan, Sarvepalli, The Principal Upanisads, George Allen and Unwin, London, 1953.
Here, Radhakrishnan translates eighteen of the major Upanisads. In addition to adding useful commentary during his translations of the texts themselves, he also spends over 100 pages giving a historical and philosophical context to the text he is about to translate. There are sections on the Veda, on the relationship to Vedanta, on dating and authorship and useful sections on philosophical concepts such as Atman and Brahman.
· -----, The Philosophy of the Upanisads, Allen and Unwin, London, 1924.
Radhakrishnan's perspective on these works is heavily biased by his interpretation of the later Vedanta and thus clouds some of his thought on these matters. However, This text is easily understood and can be a useful introduction to Upanisadic thought.
· Ranade, R.d. A Constructive Survey of Upanisadic Philosophy, Sharatiya Vedya Bhavan, Bombay, 1958.
The principal goal of this work seems to be a interpretation of Upanisadic philosophy in terms of western philosophy. Thus the author focuses upon philosophy and distorts his reading of these texts as he orders their contents.