CONTENTS. 



PAPEKS BEAD. 



Page 



35. Prof. Bonney & Mr. Parkinson on Devitrification in Glassy Igneous Kocks. 



(Plate XXVI.) 429 



36. Mr. S. S. Buckman on the Toarcian of Bredon Hill 445 



37. Mr. S. S. Buckman on two Toarcian Ammonites. (Plates XXVII & 



XXVIII) 459 



(Titlepage, Contents, and Index to Vol. LIX.) 



[No. 237 will be published next February.] 



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 Authors alone are responsible for the facts and opinions contained in their respective 

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