Geological Society. 491 



beetles attacking furniture, and of the methods of prevention and 

 control. The beetles are, Anobium punctatum (the egg, larva, 

 imago, and sections of wood showing the holes made by the larva, 

 are shown, either on the plate or in text-figures), Ptilinus pectini- 

 cornis, Xestobium rufovillomm (the larva of which has done so much 

 damage to the roof of Westminster Hall), Lyctus brunneus, and 

 Lyctus linearis, the chief culprit being Anobium punctatum. The 

 methods of dealing with their attacks are grouped under three 

 headings: — (1) Treatment by heat, (2) Fumigation with a gas or 

 vapour, (3) Treatment by the application of a liquid. 



PROCEEDINGS OF LEARNED SOCIETIES. 



GEOLOGICAL SOCIETY. 



April 21st, 1920.— Mr. R. D. Oldham, F.R.S., 

 President, in the Chair. 



The following communication was read : — 



'The Cambrian Horizons of Comley (Shropshire), and their 

 Braehiopoda, Pteropoda, Gasteropoda, etc.' Bv Edgar Sterling 

 Cobbold, F.G.S. 



As the study of the Comley Cambrian fossils proceeded, it 

 became apparent that the several faunas (sketched out in 1911 on 

 the evidence of the trilobites 1 ) and their order of appearance may 

 prove to be of more than local interest. The Author consequently 

 proposes names for the horizons, based on their fossil contents, to 

 replace those used in his previous publications, which were often 

 clumsy and only of local origin, though necessary until the fossils 

 were better known. 



Table I of the paper gives the names now proposed, together 

 with those previously used, notes on the principal lithological 

 characters of the beds, and such correlations as are at present 

 possible. The Comley Sandstone Series includes beds of Lower 

 Cambrian and Middle Cambrian age up to an equivalent of the 

 Paradoxides-forcliammeri Zone, and is overlain by a group of 

 shales belonging to the Upper Cambrian. 



The horizons now recognized and their possible correlations are 

 as follows : — 



Names propQsed. _ '_' Correlation Notes. 



Upper Cambrian. 



Orusia Shale. Ca, 0. lenticularis Beds, Scandinavia 



and North Wales. 

 Middle Cambrian. 



Billingsella Beds. Be. P. forchammeri Zone, Scandinavia. 



fP. davidis Beds, Scandinavia, North 

 Paradoxides-davidis Flags. Bb. 5. •{ and South Wales in part. 



I^Upper davidis fauna, Nuneaton. 



1 See E. S. Cobbold, Q. J. G. S. vol. lxvii, pp. 282 et seqq. 



