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Transactions, 



the shingle. If this were a correct supposition, it was considered possible 

 to locate the outcrop of the water-bearing stratum by means of observing 

 the rainfall at a number of places between Lincoln and the mountains. 



Fig. 3. — Diagram of the Structure of the Plain. 



and noting at which places the rainfall most nearly corresponded with the 

 fluctuations in the level of the well. For this purpose rain-gauges were 

 installed or existing installations were used to obtain records of the daily 

 rainfall from the following places : Rolleston, Lawford, Kirwee, Darfield, 

 Hororata, G-lenroy, and Mount Torlesse. The positions of these places are 

 shown on the following map, which also shows the two rivers of the district. 

 The slope of the plain is from north-west to south-east. 



0m 



SCALE OF ENCLim MILES 

 10. 



PACIFIC 



Fig. 4. — Map of Portion of Canterbury Plain, showing Positions of Rain- 

 gauges. 



1, Lincoln; 2, Rolleston: 3, Lawford (half-way between Weedon's and West 

 Melton) ; 4. Kirwee ; 5, Darfield ; f>, Hororata ; 7, Glenroy ; 8, Mount Tor- 

 lesse (two miles above Springfield). 



