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. DISCOVERY A MONTHLY POPULAR JOURNAL OF KNOWLEDGE Vol. IV, No. 44. AUGUST 1923. PRICE Is. NET. DISCOVERY. A Monthly Popular Journal of Know- ledge. Edited by Edward Liveing, , 23 Westminster Mansions, Great Smith Street, London, , to whom all Editorial Communications should be addressed. (Dr. A. S. Russell continues to act as Scientific Adviser.) Published by John Murray, 50A Albemarle Street, London, , to whom all Business Communications should be addressed. Advertisement Office: 34 Ludgate Chambers, 32 Ludgate Hill, London, Annual Subscription, 12s. 6d. post free ; Single
. DISCOVERY A MONTHLY POPULAR JOURNAL OF KNOWLEDGE Vol. IV, No. 44. AUGUST 1923. PRICE Is. NET. DISCOVERY. A Monthly Popular Journal of Know- ledge. Edited by Edward Liveing, , 23 Westminster Mansions, Great Smith Street, London, , to whom all Editorial Communications should be addressed. (Dr. A. S. Russell continues to act as Scientific Adviser.) Published by John Murray, 50A Albemarle Street, London, , to whom all Business Communications should be addressed. Advertisement Office: 34 Ludgate Chambers, 32 Ludgate Hill, London, Annual Subscription, 12s. 6d. post free ; Single numbers, IS. net; postage, 2d. Binding cases for Vol. Ill, 1922, are now ready. Price 2S. 6d. net each; postage, gd. Editorial Notes The idea of a " lost Atlantis " has for several centuries fascinated mankind and attracted its more imaginative members to weave fantastic legends about some once beautiful- continent inhabited by a highly civilised people before it sank into the waves of the Pacific thousands of years ago. In the July number of Discovery we published an account of a new theory about the structure of the earth.' The theory is that of a German geologist, Kober, and in one sense is a development of Professor Wegener's new theory of land and continent formation. Kober puts forward the idea that in the process of cooling the earth's crust has come to consist of large, solid blocks of matter moving gradually through a softer layer. The large blocks meet each other, the softer layer being pushed up in between them during the gradual process of contact. In this way mountain masses and high land are thrust up above the sea level, only to subside again millions of years later as the blocks beneath corrode owing to their pressure against each other. Such is the theory in bald outline. Though it must be accepted with considerable reserve and is certain to provoke much criticism, it gives a plausible explanation of some quite recent earth disturbances— 1 See p. 1
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