278 DR. C. A. MATLEY OX THE [JuDG I9I2, 



Phillips, J. A. (81) — 'On the Constitution & History of Grits & Sandstones' 



Q. J. G. S. vol. xxxvii (1881) pp. 6-27. 

 RiCHAEDS, E. P. (94). — 'On Researches in the newlj'-discovered " Acrodtis Red " in 



the Green Gritty INIarls of the Upper Keuper at Shrewlej^, Warwickshire. 



Chiefly upon its Extension' Proc. Warw. Nat. Field-Cluh, 1893 (1894) 



pp. 54-57. 

 Stmonds, Rev. W. S. (57). — ' Stones of the Valley ' 1857, pp. 156-57. 

 Wills, L. J. (07). — 'On some Fossiliferous Keuper Rocks at Bi'omsgrove (Worcester- 

 shire) ' Geol. Mag. dec. 5, vol. iv (1907) pp. 28-34. 

 Woodward, A. S. (89^). — ' Palaeichthyological Notes. No. 1. On the so-called 



Hyhodus keuverinus Murch. & Strickl. ' Ann. & Mag. Nat. Hist. ser. 6, 



vol. iii (1889) pp. 297-99 & pi. xiv, figs. 1-3 «. 

 Woodward, A. S. (89^). — 'Catalogue of the Fossil Fishes in the British Museum' 



pt. i (1889) p. 281. 

 Woodward, A, S. (93). — ' Palgeichthyological Notes. [Various suh-titles.] Ann. 



& Mag. Nat. Hist. ser. 6, vol. xii (1893) pp. 282-83 & pi. x. 



EXPLANATION OF PLATE XVIII. 



Map of the Upper Keupei' (Marls and Arden-Sandstone Group) of part of 

 Warwickshire, on the scale of 1 inch to the mile, or 1 : 63,360. 



Discussion. 



The Peesidet^t (Prof. W. W. Watts) remarked tliat, if ever there 

 was au apparently hopeless district in which to embark upon 

 geological work, it was that Porest of Arden which Shakespeare 

 had immortalized. The paper just read showed how a genius for 

 mapping enabled an observer to secure most valuable results under 

 extremely unfavourable circumstances. The Author had shown 

 that there were two types of marls — one above and one below the 

 sandstones. He had also proved that the area had a definite geo- 

 logical structure; and, finally, he had demonstrated that what might 

 appear to be, at lirst sight, merely an academic type of field-work, 

 has a definite economic application. 



Mr. L. J. AYiLLs endorsed the President's remarks concerning the 

 natural difficulties in the way of producing a map such as the 

 Author had put before the Society, and congratulated P)r. Matley 

 on his success. He had seen something of the ground, and would 

 have liked to hear more evidence about the continuity of the belt 

 or group, for the sandstones varied enormously in composition and 

 thickness, and he believed that in many cases the connecting links 

 were nothing but blue soil or bits of blue shale. 



With regard to the fossils, the Author had handed over some 

 specimens to him, and Mr. Campbell Smith and the speaker had 

 found a number themselves, of which some were exhibited. 

 Murchison & Strickland, in their original investigation of these 

 sandstones, had found nearly all the forms since recorded. 



The general resemblance of the plants to the Lower Keuper forms 

 obtained at Bromsgrove, and in the case of Volfzia to V. heterojyJiylla 

 (also known from the German Bunter), was striking. The shell 

 identified by Mr. B. Bullen Xewton as Nucula had recently been 

 found at Shelfield Square, 6 or 8 miles south-west of its type- locality 

 at Shrewley. 



