The Felsitic Lavas of England And Wales With An Introductory Description of the
The book The Felsitic Lavas of England And Wales With An Introductory Description of the was written by author Frank Rutley Here you can read free online of The Felsitic Lavas of England And Wales With An Introductory Description of the book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Felsitic Lavas of England And Wales With An Introductory Description of the a good or bad book?
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Devitrified obsidian or rhyolite. Near Llanwnda, Fishguard, Pembroke- shire, x 18. PLATE IV. 1. Devitrified perlitic obsidian. Esgair-felen, Y. Glyder Fawr, North Wales, x 10. FF = Felsitic matter like PP between crossed nicols. PP = Areas in which perlitic structure occurs. Qq = Aggregates of quartz. 2. String of spherules in devitrified obsidian. Skomer Island. Ordinary iilumination. 3. The same in polarised light, showing transverse joints, separating distinct crystalline bundles. LI 18642. ...30 PLATE I. tl 18642, 31 PLATE II. Fig. 1 Fig. 5. Fig. 6. 32 PLATE III. Fig. 2. Fig. 3. Fig. 4. Fig. 5. 33 PLATE IV. . Fl. L O N D O*N : Printed by EYRE and S P o i T i s w o o r> F. , Printers to the Queen's most Excellent Majesty. For Her Majesty's Stationery Office, [8917. 375. 12/85. ] 14 DAY USE RETURN TO DESK FROM WHICH BORROWED EARTH SCIENCES LIBKAKY This book is due on the last date stamped below, or on the date to which renewed. Renewed books are subject to immediate recall. LD 21-40m-10, '65 (F7763slO)476 General Library University of California Berkeley 015 98 NE - 96 NAV, 98 SE - 98 NE - 101 SE 104 SW, 108 SE SHEET MEMOIRS OP THE GEOX.
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