Reports & Proceedings—Geological Society of London. 235 
alternate with deeply incised rocky ravines where rivers flow as 
rapids and cascades. These two types mark successive periods of 
erosion. Post-Pliocene uplift gave such increased cutting-power to 
the rivers that they quickly incised chasms in their former valleys, 
employing while so doing the activity of waterfalls and rapids. 
2. March 8,1916.—Dr. Alfred Harker, F.R.S., President, in the Chair. 
The President referred with regret to the death, on March 3, 
of Professor John Wesley Judd, C.B., LL.D., F.R.S., Past 
President of the Society. He spoke of the value of Professor 
Judd’s contributions to geological science, and of his eminence as 
a teacher of the science, and stated that the Society was well 
represented at the funeral. 
Dr. Aubrey Strahan, F.R.S., Director of H.M. Geological Survey, 
exhibited and described briefly a set of specimens from the Western 
Front, illustrating the character of the rocks in which trenches, 
tunnels, etce., are being dug. They included specimens from the 
Cretaceous and Tertiary formations showing remarkable similarity in 
characters to the contemporaneous formations in Britain. 
The following communication was read :— 
‘¢ Fossil Insects‘ from the British Coal-measures.’”” By Herbert 
Bolton, M.Sc., F.R.S.E., F.G.S., Reader in Paleontology in the 
University of Bristol. 
The author describes six insect wings found in the Coal-measures 
of Northumberland, Lancashire, and South Wales. Three of these 
have been previously named, but not described in detail; the 
remaining three are new to science. 
Atdwophasina anglica, Scudder, has been examined in detail, and 
is now regarded as a primitive type of the Proto- Orthoptera, in 
contradistinction to Scudder’s view that it is a Protophasmid, and 
to that of Handlirsch, who had removed it to a group of unplaced 
Paleeodictyoptera. 
Paleodictyopteron higginsi is shown to be related to the 
Dictyoneuride. 
A new genus and species is created for, a finely preserved 
Wing, intermediate in character between the Dictyoneura and 
Lnthomantis. 
Among the varied fauna obtained from ironstone nodules in the 
Middle Coal-measures at Sparth Bottoms, Rochdale (Lancashire), is 
a basal fragment of a wing recognized as a new species of Sprlaptera, 
and this is now described. 
An unusual type of wing from the Northumberland Coal-field is 
very suggestive of the Protodonata, and is described as a KID a 
tive of a new genus and species. 
The author. also discusses the Proto-Orthopterous affinities of 
Pseudofouquea cambrensis (Allen). 
