22 
ZOOLOGICAL NOTES, 1913-14. 
A pair of Black-Cap Warblers nested in Delamere Forest in July, 1913. 
Cormorant (adult). In the Dee, near the White House, January 30th, 
1914. 
Razorbill (adult). A specimen was caught alive on a pit at Saighton, 
Chester, on February 23rd, 1914. Reported by the Rev. H. W. Trott. 
Another in adult plumage was captured alive on a sand-bank of the 
Dee, near Saltney, February 23rd, 1914. The meterological conditions 
existing at the time prove that these birds were storm driven. 
Swallows and Sand Martins were very numerous, flying low over a Cheshire 
Mere on April 16th, 1913. 
Five pairs of Turtle Doves were seen feeding in a field off Sealand Road 
on May 4th, 1913. 
Lesser Spotted Woodpecker. A female was taken at Marford, Gresford, 
on February 11th, 1914. 
A. NewstTeEap. 
GEOLOGICAL SECTION. 
The first Lecture of the Session was.given by Mr. W. Bezant Lowe, M.A., 
F.G.S., of Llanfairfechan, on “ Glaciers and.the Great Ice Age in North 
Wales,” before an exceedingly good audience. Pictures of glaciers in 
Switzerland and Northern Europe were shewn to illustrate present day 
ice action, and afterwards pictures of the passes and valleys radiating 
from the Snowdonian range demonstrated clearly how ice action had 
modified the surface of the earth in that neighbourhood. 
Miss K. E. Maris, of the Queen’s School, read a paper towards the end 
of the Session on “‘ The Coasts of Great Britain,” and shewed an intimate 
acquaintance with her subject, the factors which determine the nature and 
extent of our coast lines, with their endless variety and beauty of aspect, 
being adequately dealt with. Lantern slides of typical coast formation, 
including chalk and limestone cliffs and sandy shores, were exhibited, 
and raised beaches and submerged coasts treated fully by the lecturer. 
The world wide changes of levels as regards sea and land were mentioned, 
and the difficulties of adequate solution set out. The levels of the Dee 
and other estuaries received consideration, and the causes of difference 
given by Miss Maris. 
NATURAL PHILOSOPHY SECTION. 
Two Meetings of this Section were held during the Session. On Decem- 
ber 11th, 1913, Mr. W. D. Scouller, M.Sc., F.C.S., read a paper on Sewage 
and its Purification, and on March 12th, 1914, the Rev. R. A. Thomas, M.A., 
read a paper on the Fourth Dimension. 
SEWAGE AND ITS PURIFICATION. 
By Mr. W. D. Scouiiter, M.Sc., F.C.S. 
In a Lecture, well illustrated by a large number of lantern slides, Mr. 
Scouller clearly explained how the modern processes of sewage treatment 
have been developed in the last 20 years, and that the treatment of sewage 
at disposal works may be roughly divided into two branches. 
First, the removal of the grosser suspended particles. This is usually 
carried out by sedimentation in tanks. The particles settle on the floor 
