42 
J. HOPKINSOH—THE BEITISH ASSOCIATION" 
5. Geological Photography. 
Committee appointed at Newcastle-upon-Tyne, 1889. 
Object. —The collection, preservation, and systematic registration 
of Photographs of geological interest in the United Kingdom. 
Secretary.- —Mr. Osmund W. Jeffs, F.G.S., 12, Queen’s Road, 
Rock Perry, Cheshire. 
A list of the photographs received, with the name of the photo¬ 
grapher and of the Society under whose auspices they are taken, 
will be published annually in the Reports of the British Association. 
The size of photograph recommended is “ whole-plate ” (8£ by 
6£ inches), but smaller photographs, if clear, will be received and 
registered. 
6 . Pisappearance of Native Plants. 
Committee appointed at Birmingham, 1886. 
Object. —The collection of information as to the disappearance of 
Native Plants from their local habitats. 
Secretary. —Prof. W. Hillhouse, M.A., 95, Harborne Road, 
Edgbaston, Birmingham. 
Observations by competent botanists as to the disappearance of 
native plants and the probable cause are required. The nomen¬ 
clature adopted in the 8th edition of the ‘ London Catalogue of 
British Plants ’ must be followed, and the numbers prefixed to the 
names of the species in that catalogue should be quoted. The in¬ 
vestigations of this Committee are at present confined to Scotland. 
7. Fresh-water Fauna and Flora. 
Committee appointed at Newcastle-upon-Tyne, 1889. 
Object. —To investigate the Invertebrate Pauna and Cryptogamic 
Flora of the fresh waters of the British Isles. 
Secretary. —Prof. J. C. Ewart, M.D., University of Edinburgh. 
Observers are desired to note the geological and physical features 
of the river or lake which they investigate, and the temperature at 
different periods of the year. This is pre-eminently an investiga¬ 
tion for local societies to undertake, for it is one which almost 
necessitates division of labour, giving work to the members who 
study meteorology, geology, botany, and zoology, and to specialists 
in many of the different departments of the last two sciences. 
Microscopists, especially, may render most valuable aid to this 
Committee, the invertebrate fauna and cryptogamic flora of our 
rivers and lakes being chiefly microscopic. 
8 . Pre-historic Remains. 
Committee appointed at Birmingham, 1886. 
Object. —To ascertain and record the localities in the British 
Isles in which evidences of the existence of Pre-historic Inhabitants 
of the country are found. 
Secretary .—Mr. J. W. Davis, F.G.S., Chevinedge, Halifax. 
