AND LOCAL SCIENTIFIC INVESTIGATION. 
41 
2. Underground Waters. 
Committee appointed at Belfast, 1874. 
Object. —To investigate the circulation of Underground Waters 
in the permeable formations of England and Wales, and the 
quantity and character of the water supplied to various towns and 
districts from these formations. 
Secretary. —Mr. C. E. De Ranee, E.G.S., 28, Jermyn Street, 
London, S.W. 
Records of the height of the water in wells, with particulars of 
the variations of level at different periods, are required, as well as 
notes on the character of the water, and particulars of the for¬ 
mations from which it is derived. 
3. Erosion of Sea-Coast. 
Committee appointed at Southampton, 1882. 
Object .—To investigate the rate of erosion of the Sea-coasts of 
England and Wales, and the influence of the artificial abstraction 
of shingle or other material on that action. 
Secretary. —Mr. W. Topley, E.R.S., 28, Jermyn Street, London. 
It is evidently impossible for any but local observers to record 
the rate at which erosion is taking place on our sea-coast, for the 
amount of erosion at any one place varies greatly from year to year. 
Observers are desired to take measurements periodically from 
permanently fixed objects, and to record not only the artificial 
removal of material hut also the building of sea-walls, breakwaters, 
etc., and to look up old plans, deeds, or other documents which 
may show the position of the sea-coast in former times. 
4. Erratic Boulders. 
Committee appointed at Edinburgh, 1871. 
Object .—To record the position, height above the sea, lithological 
characters, size, and origin of the Erratic Blocks of England, 
Wales, and Ireland, to report other matters of interest connected 
with the same, and to take measures for their preservation. 
Secretary. —Rev. Dr. Crosskey, E.G.S., 117, Gough Road, 
Birmingham. 
By the accumulation of information from all parts of the country, 
and by its careful arrangement and examination, the Committee 
hopes to arrive at data which will be of material assistance in the 
study of the history of the Glacial Period. 
Boulders are scattered over large districts, particulars concerning 
them can easily be noted, and as they are continually being de¬ 
stroyed, or removed from their original sites, it is desirable that 
records should be obtained as early as possible. Eor this it is 
evident that a large amount of local assistance is required. 
The investigations of this Committee do not extend to Scotland; 
the Royal Society of Edinburgh having appointed a “ Boulder 
Committee ” for that country. Of this Committee Mr. D. Milne 
Home, M.A., E.R.S.E., 10, York Place, Edinburgh, is the Convener. 
