Notes and Comments. 251 
MARINE BIOLOGY. 
We have received the Annual Report for 1914 of the 
Scottish Marine Biological Association (g0 pages), which is 
well illustrated, and contains an excellent record of this society’s 
work. We suppose it is more or less appropriate that by article 
15 ‘ the Association shall have a common seal,’ though it hardly 
seems a strictly biological operation that it ‘shall be affixed 
to any deed or document,’ unless, of course, such document 
A good collecting ground. 
be the label. We reproduce one of the many illustrations 
which adorn the report. 
ACCESSORY MINERALS IN LAKE DISTRICT GRANITES. 
At a recent meeting of the London Geological Society, 
Messrs. R. H. Rastall and W. H. Wilcockson read a paper on 
‘The Accessory Minerals of the Granitic Rocks of the English 
Lake District.’ Preliminary investigations promised results of 
interest if the rocks of a whole district were examined, and 
for this purpose the Lake District was selected. The rocks 
described are the granites of Skiddaw, Shap, and Eskdale, 
the microgranite of Threlkeld, and the granophyre of Butter- 
mere and Ennerdale. The material was pounded in a mortar, 
washed, and panned, and the concentrate separated in bromo- 
form after the removal of the magnetic portion. The general 
results showed a well-marked variation of accessory minerals 
between the different intrusions, but a similarity between parts 
1915 Aug. 1. 
