No. 669. 



Vl'I. LVII of Whole Series. 



Price 2s. 6d. 



The 



Geological Magazine 



riDontblP 3ourual of cBcoloov, 



WITH WHICH IS IXCOUPOKATED 



THE GEOLOGIST 



3DITED BY 



HENRY WOODWARD, LL.D., F.|,.Sl*»'^SA ® -5 

 R. H. RASTALL. M.A. 



^*<iiH: 



ASSISTED BV 



PKOF. J. W. C4REG0RY. D.Sc, F.R.S. Sir JETHRO J. H. TEALL, Sc.D., F.R.S. 



P. H. HATCH, Ph.D., M.Inst.M.M. Pbof. W. W. WATTS, Sc.D., F.R.S. 



Peof. J. E. MARR, Sc.D., F.R.S. HENRY WOODS, M.A., F.R.s! 



Dr. a. smith WOODWARD, F.R.S. 



MAECH, 1920. 



CONTENTS 



Page 

 . 97 



E DiTOEiAL Notes 



Okiginal Aiiriox-b,s. 



An Inverted Mass of Upper Cre- 

 taceous Strata near Leighton 

 Buzzard. By P. L. Kitchin and 

 •T. PPJNGLE. {Concluded.) 100 



Carboniferous Fossils from Siani. 

 By F. E. CowPER Hee];>. (With 

 a Text-tigure.) US 



Escarpments and Transverse Hi vers. 

 By Henry Bury 120 



Some Microcbemical Methods. By 

 A. Brammall .'. 1'2.S 



A Fossil Charopliyte Fruit. Bv 

 •Tames Groves. "^ (With a Text- 

 figure.) 126 



Beviews. Paije 



North American Equidas 128 



The Grimaldi Caverns ISO 



Cretaceous Silicispongias 131 



Magnetic Disturbances in the 

 Midlands 13;} 



P.eports and Proceedings. 



Geological Society of London 135 



Edinburgh Geological Society 138 



Correspondence. 



L. F. Spath 142 



S. S. Buckman 144 



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