424 Geological Society, 



warmer colour above, greyer and less buff/ tone below, 

 including the almost complete absence of the strong buff y of 

 the inner side of the forearms, by the more creamy tone 

 of the belly, and by the whitish instead of buffy tips to the 

 caudal hairs. 



Col. Sykes tells me " These ground-squirrels appear in 

 April, and have no cover for about a month. After that they 

 disappear into the crops, and are rarely seen outside. Those 

 I sent you were certainly killed in April, and probably all 

 the others.'" 



PROCEEDINGS OF LEARNED SOCIETIES. 



GEOLOGICAL SOCIETY. 



February 24th, 1915.— Dr. A. Smith Woodward, F.R.S., President, 



in the Chair. 



The following communication was read : — 



'The Ashgillian Succession in the Tract to the West of 

 Coniston Xake.' By John Edward Marr, Sc.D., F.R.S., F.G.S. 



The Author has studied in detail the succession of the Ashgillian 

 strata in Ashgill Beck and the adjoining tract. In Ashgill Beck 

 the following sequence was detected : — 



Valentian. 



Tinckness in feet. 



rUp per... Ashgill Shales about 50 



I r P/irtcops-mwcronafus Beds 16 



Ashgillian <| Middle-^ Ash 16 



I [ White Limestone about 1 2 



l^Lower... P?iiJltpsineZla. Beds 7 



Caradocian. 



An account of the lithological characters and lists of the fossil 

 •contents of the various divisions are given, and confirmatory 

 sections from Coniston Village to Appletreeworth Beck are described. 

 A comparison is made with the beds of the Cautley district, 

 previously described by the Author. Some fossils which have not 

 yet been found in the Lower Ashgillian of the Cautley disti-ict 

 occiu- in the beds of that division at Coniston. 



From a study of the fossils of the Coniston tract and of other 

 areas in Britain and tlie Continent, it would appear that a two- 

 fold division of the Ashgillian strata which is of more than local 

 value may be made. The lower division is characterized by 

 the abundanc'e of Phillijosinella parabola, and the upper by the 

 profusion of Phacops mucronatus. 



