scholarly journals POLYMYOSITIS. By John N. Walton, M.D., M.R.C.P., First Assistant in Neurology, King's College, University of Durham, in the Royal Victoria Infirmary, Newcastle upon Tyne; and Raymond D. Adams, M.D., Bullard Professor of Neuropathology, Harvard University. 8¾ x 6 in. Pp. x + 270, with 47 figures (6 in colour), 9 tables. Index. 1958. Edinburgh and London: E. & S. Livingstone Ltd. Price 32s. 6d

1959 ◽  
Vol 41-B (1) ◽  
pp. 226-226
Author(s):  
Paul Sandifer
Author(s):  
Arthur Russell

The mineral here described was at first considered to be an iron-rich variety of turquoise and was described by myself as such when this paper was read before the Society in 1937. At that time only a partial analysis had been made; since then Dr. J. A. Smythe of King's College, Newcastle-upon-Tyne, has most kindly undertaken at my instigation careful analyses of the mineral from both of its localities, Bunny mine, St. Austell, and Castle-an-Dinas wolfram mine, St. Columb Major. As a result of these two analyses, which are in close agreement, it is evident that the mineral is a new one, intermediate between turquoise and the two minerals chalcosiderite and andrewsite, and forming a middle member of what is probably an isomorphous group.


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