CORRESPONDING SOCIETIES. 61 
heights at which the water was found to stand, when the works were 
first commenced and after long pumping. The questions were drawn up 
with considerable care, and had been added to from time to time, and 
he thought they now practically grasped the whole subject. The Secre- 
‘tary of the Committee would have great pleasure in giving either a 
number of these forms, or a sample copy, to any Secretary of the Corre- 
sponding Societies throughout the country who might be desirous of 
being supplied with the same. The Committee in their present report 
(the fifteenth) laid before Section C comment on the fact that no less 
than three Societies have printed valuable information on this subject on 
the lines which had been adopted by the Committee of the British Asso- 
ciation, and the more important of their sections and details had been 
printed in this fifteenth report. 
Then there was the Committee of Inquiry into the position and 
character of — 
Erratic Boulders. Dr. Crosskey, its indefatigable Secretary, intended 
in the future to get a series of maps on which the position of the more 
important boulders should be entered, and he (Mr. De Rance) believed 
it was intended to take the one-inch Ordnance maps and to place upon 
them the actual position of the boulders which had been recorded; as 
far as possible, the character and point of origin of those boulders are also 
being determined. Dr. Crosskey had presented his last report—the seven- 
teenth—before Section C, and he (Mr. De Rance) believed that already 
the bringing of this work before the Corresponding Societies had borne 
fruit. He had received, independently of the British Association, a 
circular from the Liverpool and some other area in which evidently an 
endeavour had been made to form a committee to go into the subject 
on the lines of the original inquiry which had been carried out with so 
much success by Dr. Crosskey, who, he knew, was most anxious to give to 
the Secretaries of the Societies represented by Delegates copies of the 
printed forms of inquiry as to the position of boulders, their nature and 
character, and to ascertain from them whether steps should be taken to 
preserve them as memorials of the past. 
Another Committee was the— 
Coast-Erosion Commiltee, which had been taken up by his colleague, 
Mr. Topley, who had drawn up all the, valuable reports on coast erosion 
already published by the British Association. That Committee required 
the rate of erosion of the sea on the coast of this country, and inquired 
as to how far that regular erosion had been artificially increased by the 
operations of man, by the cutting away of stone upon the sea-cliffs for 
economic and building purposes, and by the building of sea-walls in posi- 
tions and under conditions which were unadvisable, and by breakwaters 
ot leading the water in the right way, which in many cases increased 
the coast erosion. Already much valuable information had been put to- 
ether by Mr. Topley in the reports which had been published ; but these 
only covered a portion of the country, and erosion was gradually and 
‘steadily going on all round the coast. The Corresponding Societies which 
happened to be on the seaboard had great facilities for studying this 
“question: first, in seeing the actual rate of erosion going on at the 
present time, and, secondly, in regard to looking up old plans, docu- 
_Ments, and deeds, which might show the position of the land in times 
- gone by. 
_ Geological Photography.—Mr. De Rance said that all would admit 
