Notices of Memoirs — Papers at British Association. 465 



Provinces, published by the Smithsonian Institution in 1911. In hia 

 introduction the author has shown that the Ordovician (Lower Silurian) 

 and Gothlandian (Upper Silurian) rocks of the Baltic Provinces contain 

 a large percentage of Bryozoan species, in common with the Black 

 River, Trenton, and Niagara Limestones of the same relative age in 

 Eastern North America. This fact suggests that during Lower and 

 Upper Silurian time the old lines of migration were still open, and 

 that the Bryozoa, being of clear-water habit, were able to cross the 

 old trough from side to side. 



III. — British Association for the Adtancement of Science, Eighty- 

 second Annual Meeting, held at Dundee, September 4-11, 

 1912. List of Titles of Papers read in Section C (Geology) 

 AND in other Sections bearing upon Geology. 

 Presidential Address by Dr. Benjamin N. Peach, F.R.S. 

 Professor Thomas J. Jehu. — Address on the Geology of the Country 



around Dundee and St. Andrews. 

 Ilr. E. B. Baileij. — A Mull Problem : The Great Tertiary Breccia. 

 Mr. C. I. Gardiner. — On the Silurian Inlier of Usk. 

 Mr. T. 0. Bosworth. — The Heavy Mineral Grains in the Sandstone 



of the Scottish Carboniferous. 

 The Rev. A. Irving. — Preliminary Note on a Buried Eiver Channel 



near Peterborough. 

 Report of the Committee on the Cornposition and Origin of the 



Crystalline Rocks of Anglesey. 

 Report of the Committee on the Bembridge Limestone at Creech- 

 barrow Hill. 

 Br. Rolert Camphell. — The Discovery of Fossils in the Jasper and 



Green Schist Series of the Highland Border at Craigevin Bay, 

 - Stonehaven, 

 Br. Rolert Camplell. — The Downtonian and Old Red Sandstone of 



Kincardineshire. 

 Dr. R. M. Traquair, F.R.S. — On Cyathaspis from the Downtonian 



Rocks of Stonehaven. 

 Professor T. J. Jehu. — Discovery of Fossils in the Boundary Fault 



Series near Aberfoyle. 

 Mr. Archibald W. R. Don. — On the Nature of Parka decipiens. 

 Mr. John S. Wilson. — Uncharted Volcanic Necks at St. Andrews. 

 Report of Committee on the Index Animalium (also in Section D, 



Zoology). 

 Dr. John S. Flett. — The Sequence of Volcanic Rocks in Scotland in 



relation to the Atlantic-Pacific Classification of Suess. 

 Mr. George Barrow. — The Older Granite in Lower Dee-side. 

 Mr. G. W. Tyrrell. — The Alkaline Igneous Rocks of Ayrshire. 

 Br. William Mackie. — The Yolcanic Rocks around the Ord Hill of 



Rhynie, Aberdeenshire. 

 Br. A. W. Gibb. — On an Actinolite-bearing Rock associated with 



Serpentine. 

 Mr. Edward Greenly, — On the Origin of some of the Mica-schists of 



Anglesey. 

 Mr. Albert GilUgan. — The Millstone Grit of Yorkshire — New Evidence 



of its Source of Origin. 



DECADE V. — VOL. IX. — NO. X. 30 



