56 
DONS. 
4 mars-6 mai 1878. 
ori^in of the more important of the Erratic Blocks of England and Wales, reporting 
other matters of interest connected with the same, and taking measures for their 
préservation, Rep., 110. 
R. H. Tiddeman. — Fourth Report of the Committee appointed for the purpose of 
assisting in the Exploration of the Settle Caves (Victoria Cave), Rep., 115. 
J. Young._Address, Comm., 72;— On Siliceous Sponges from the Çarbonife- 
rous Limestone near Glasgow, 99. 
Duc d’Argvll. — On the Physical Structure of the Highlands in connexion with 
their Geological History, Comm., 81. 
J. Bryce. — On the Granité of Strath-Errick, Lough Ness, Comm.. 87. 
J. Çroll. — On the Tidal-Retardation Argument for the Age of the Earth, Comm., 
88 . 
Ant. Fritsch. — On Labvrinthodont Remains from the Upper Carboniferous (Gas- 
Coal) ofBohemia, Comm., 89. 
G. A. Gibson. — On the Physical Geology and Geological Structure of Foula, 
Comm., 90. 
Edw. Hull. — On the Upper Limit of the essentially Marine Beds of the Carboni¬ 
ferous System of the British Isles, and the necessity for the establishment of a 
Middle Carboniferous Group, Comm., 90 ; — On a Deep Boring for Coal at Scarle, 
near Lincoln, 91. 
Von Lasaulx. — On some New Minerais, and on Doubly-refracting Garnets, Comm., 
92. 
G. A. Lebour. — On the changes affecting the Southern Extension of the Lowest 
Carboniferous Rocks, Comm., 93. 
D. Milne-Home. — On the Parallel roads of Glen Roy, Comm., 93; — On High- 
level Terra ces in Carron Valley, County of Linlithgow, 91. 
C. W. Peach. — On Circinnate Vernation of Sphenopteris affinis from the Ear- 
liest Stage to Completion ; and on the Discovery of Staphylopteris, a Genus new to 
British Rocks, Comm., 91, 111. 
R. Russell et J. V. Holmes. — On the Raised Beach on the Cumberland Coast, 
between Whitehaven and Bowness, Comm., 95. 
E. Sewell. — Notes on the Drifts and Boulders of the upper part of the Valley of 
the Wharfe, Yorkshire, Comm., 95. 
W. A. Traill. — On certain pre-Carboniferous and metamorphosed Trapdykes and 
the associated Rocks of North Mayo, Ireland, Comm., 97. 
W. C. Williamson. — Recent Researches into the Organization of some of the Plants 
ofthe Coal-Measures, Comm., 98; — On some of the Physiological and Morpholo- 
gical Features seen in the Plants of the Coal-Measures, 115. 
E. A. Wünsch. — On the Junction of Granit and Old Red Sandstone at Corrie and 
Glen Sannox, Arran, Comm., 98. 
A. Leith Adams. — On Gigantic Land-Tortoises and a Freshwater Species from 
the Maltese Caverns, with observations on their Fossil Fauna, Comm., 145. 
Londres. Geological Magazine (The), 2 e sér., 2 e déc., t. Y, n° 4; 
1878. 
T. Mellard Reade. — The Age of the World as viewed by the Geologist and the 
Mathematician, 115. 
C. Lloyd Morgan. — Geological Time, 154. 
J. Young. — What must be explained before the Préservation of Deposits under 
Till is explained, 162. 
