: 
ON PHOTOGRAPHS OF GEOLOGICAL INTEREST. 317 
Roscommon.—Photographed by G. A. J. Coun, F.R.S., Carrickmines, 
Co. Dublin. L. 
Regd. No 
6284 (21) View W. from Slieve Bawn, Characteristic lake-set Carboniferous 
S. of Carrick-on-Shannon . Limestone plain. 
Stiao.—Photographed by G. A. J. Coun, F.R.S., Carrickmines, 
Co. Dublin. UL. 
6285 (20) Ben Bulben : : . Carboniferous Limestone  flat-topped 
hill. 
— WarerrorD.—Photographed by G. A. J. Corn, F.R.S., Carrickmines, 
Co. Dublin. L. 
6286 (30) Lough Coumshingaun, Tarn at base of cirque- -cliff of O.R.S. 
Comeragh Mts. : 
Wicktow.—Photographed by G. A. J. Coun, F.R.S., Carrickmines. 
Co. Dublin. LL. 
6287 (8) Upper Lough Bray. . Moraine separating the two lakes. 
6288 (9) Lough Nahanagar, Leinster Block-moraine holding up lake. 
granite chain 
6289 (10) Fall of Dargle river, Fatl is determined by junction of rela- 
Powerscourt tively soft schists with hard granite. 
6290 (11) R. Liffey above Pollaphuca Post- glacial ravice in Ordovician 
fall (Wicklow and Kaildare slates. 
border) 
6291 (12) Pollaphuca fall of R. Liffey Central shelf due to andesite bar in 
(Wicklow and Kildare Ordovician slates. 
border) 
6292 (13) Near head of Glenmacnass Roots of trees in peat on granite 600 ft. 
above present tree lim:;. 
6293 (14) E. of Luggela above Round- Granite erratics on mica schist. 
wood 
6294 (15) Ovoza Valley. ; . Mines (Cu and Fe pyrites and ochre). 
Channel Islands. 
Jursey.—Pholographed by S. H. Reynoups, M.A., Sc.D., 
The University, Bristol. ‘1/4. 
6295 (1921-20) La Moye . 2 . Basic dyke. 1921. 
6296 (1921-21) Belval Cove, St. Coarse Cambrian and Conglomerate. 
Catherine’s Bay 1921. 
6297 (1921-22) Anne Port . - . Columnar rhyolite. 1921. 
6298 (1921-24) Mt. Orgueil ‘ . Mica trap dyke. 1921 
Gurrnsrey.—Photographed by B. Hopson, M.Sc., Thornton, 
Hallamgate Road, Sheffield. 1/4. 
6299 (F1) Looking E. from Corbiére Basic dykes cutting gneiss. 1921. 
promontory 
6300 (E4: Les Tielles (S. coast) . Basic dykes in gneiss. 1921. 
6301 (E6) Moulin Huet Bay . . Marine erosion of gneiss. 1921, 
