S40 Rain Fall at Glanton Pike, Northumberland. 



The love of simplicity has, perhaps, led theorists to attri- 

 bute too much to one cause. The question is complicated ; 

 as conditions in the problem, there are not only glaciated 

 rock surfaces and glaciated boulders mixed pell mell in the 

 lower clay ; but similar boulders in gravel and sand beds, 

 and also stratified sands and clays and water-worn gravels ; 

 and in addition, the occurrence of marine shells in the lower 

 as well as in the upper clays. A comprehensive theory must 

 allow for the play of various agencies — the movement of ice 

 down mountains and over extended areas of land to the sea 

 shore, the stranding of icebergs, the transport of gravel and 

 sand by marine currents, and even the quiet deposit of mud 

 in stiller waters, during the long period comprehended in the 

 boulder clay formation. 



An exhaustive examination of such a district as the eastern 

 borders might be useful ; more observations are required ; 

 and it is desirable that the Members of the Club should note 

 down observations, when good sections of superficial strata are 

 presented. These may, hereafter, be placed on a map of the 

 eastern borders, shewing the areas covered by the boulder 

 clay, and especially the direction of the scorings on the 

 surfaces of rocks in situ. 



Rain Fall at Glanton Pike, Northumherland, in the year 

 1865. Communicated by Frederick W. Collingwood, 



Esq. 





Inches. 



January 

 February . . 

 March 



3.14 

 1.52 

 1.75 



April 



May 

 June 



0.82 

 4.89 

 0.28 



July 



August 



3.70 

 3.12 



September . . 

 October 



0.17 

 . . 10.27 



November . . 



2.53 



December . . 



2.07 



Total . . 34.26 



Top of Rain Guage — Above Ground, 7J inches ; above Sea Level, 534 feet. 



