5 8 ° 



[Proc. B.N.F.C.. 



to those found at Carthall, near Coleraine, where they are locally 

 known as " rock of the clay." A small sample of the " warp-clay " 

 was kindly examined microscopically by Mr. Joseph Wright, 

 F.G.S.. but it yielded no Microzoa. 



Tn regard to the variety of red and pink granites, which have 

 in this and previous years been noted in our district, the sources 

 naturally are varied, many are from Slieve Gallion, some resemble 

 Scottish types, and some resemble the Barnesmore type*. 

 Exceptionally large boulders of pink granite are reported by Mr. 

 Bell from Cullion Glen, N. Slieve Gallion, and in esker gravels at 

 Carmean, near Moneymore, he found pinkish granites very 

 numerous. He obtained from the same section a large specimen 

 of haematite ore, and in forwarding this erratic, drew attention to 

 its importance in giving well defined direction, the haematite ore 

 being found in situ on North Slieve Gallion. 



We desire here to record that the Section is not only indebted 

 to Mr. Bell for much assistance in Glacial work, but also for the 

 services he has rendered to local mineralogy, and which have 

 recently been rewarded, by his election to the membership of the 

 Mineralogical Society of London. 



In last year's report reference was made to the investigation 

 of Boulder-Clay at Dungannon and of the Sand-hills at Portstewart. 

 The details are included below, also the possible origins of a few 

 miscellaneous erratics that awaited determination. In the following 

 lists, where determinations are given, the probable source or 

 sources of the erratics follow each rock or group of rocks. 



*Specimens of the Barnesmore type of granite were submitted by Madame 

 Christen to Dr. J. S. Flett, Director of the Geological Survey of Scotland. 

 After submitting them to Dr. Home and Mr. Macconochie, Dr. Flett wrote 

 " They are both of opinion, that these rocks are not Scotch. Whether they are 

 [rish or not, we cannot say, but I think it very probable that they are." 



