410 Notes and Comments. 
important to prove that the claim was not justified. Other 
species figured and described in this publication are :—A. 
transformatus, defossus, bi ila gagateus, latescens, pinguts, 
vetusus and validus. 
Ammonites braikenridgii. 
A YORKSHIRE SCHOOL OF GEOGRAPHY, 
The Yorkshire Summer School of Geography, organised 
this year by the University of Leeds, has completed a success- 
ful inaugural session. More than a hundred students were in 
residence for three weeks at and near Whitby, the head- 
quarters being in the new buildings of the County School. 
Systematic instruction in the methods of modern geographical 
study was aimed at by choosing Yorkshire as a representative 
area, and studying as exhaustively as possible all the factors and 
relationships connected with its structure and location. A 
course of five lectures on the physical and special geological 
features of the district was given by Professor Kendall, to- 
gether with lectures on the North Sea, and on Meteorology, by 
Mr. A. Gilligan. This led to the study of special topics of 
industrial or historical character, including plant distribution 
and agriculture ; metalliferous and coal mining; the textile 
Naturalist, 
