PRINCIPAL CONTRIBUTORS TO THIS VOLUME. 
A. B. Badger, New College, Oxford. 
E. W. Badger, Birmingham. 
J. E. Bagnall, A.L.S., Birmingham. 
Wm. Berridge, F.R. Met. Soc., Loughborough. 
T. Bolton, F.R.M.S., Birmingham. 
R. W. Chase, Birmingham. 
F. J. Cullis, F.G.S., Birmingham. 
G. Deane, D.Sc., Birmingham. 
G. Claridge Drtjce, Oxford. 
P. H. Gosse, F.R.S., Torquay. 
W. B. Grove, B.A., Birmingham. 
W. J. Harrison, F.G.S., Birmingham. 
A. Hill, M.D., Birmingham. 
W. Hillhouse, M.A., F.L.S., Birmingham. 
W. R. Hughes, F.L.S., Birmingham. 
W. P. Marshall, M.I.C.E., Birmingham. 
Wm. Mathews, M.A., Birmingham. 
F. T. Mott, F.R.G.S., Leicester. 
Constance C. W. Naden, Birmingham. 
Kineton Parkes, Birmingham. 
James Saunders, Luton. 
B. Thompson, F.G.S., F.C.S., Northampton. 
Thos. H. Waller, B.A., B.Sc., Birmingham. 
W. H. Wilkinson, Birmingham. 
ILLUSTRATIONS IN VOLUME X. 
PLATES. 
% 
The Lichens of the Island of Bute .. Plate I., to face 
The Middle Lias of Northamptonshire .. Plates II. & III. ,, 
Flow of Solids .. .. .. .. Plate IV. ,, 
page. 
81 ^ 
109 'Z 
137 v 
