MEETINGS. 121 



This would seem to place the origin of the blue clay 

 some distance off on the west side from whence it was, 

 evidently, washed. The yellow clay seems to have originated 

 in the decomposition of the rock in its immediate neighbour- 

 hood, and to have been water-borne for a short distance. 

 Not far from this well, and to the north-east, there exists ten 

 feet of the same yellow clay under two feet of soil. 



CLAY DEPOSITS. 



A searching enquiry into the nature and extent of the 

 clay deposits has been commenced, but so far only a small 

 portion of the work has been accomplished. 



1. — The account just given of the well in " Gipps Land " 

 proves that an important deposit of clay exists in the hollows 

 between the outcrops of rock in the neighbourhood of " Spur 

 Point." This, in the places mentioned, varies in depth 

 between 10 and 19 feet, and points to a period of undisturbed 

 deposit under conditions which are non-existent at present. 



2. — Clay Deposits at the Vrangue Brickfield. 



These deposits occur on the north-west slope of Mont 

 Arrive Hill ; they have been exploited in two distinct places. 

 The old pit further south and higher up the hill has been 

 measured and levelled. The newer one at the lower level 

 inside the angle formed by the junction of the two roads has 

 not yet been carried very far ; the base of the clay has not 

 been reached. Up to the present the more plastic clay has 

 baen dug, it appears to have been washed in among and 

 around numerous angular stones which have apparently 

 fallen from the rock mass. The outcrop of the rock on which 

 the battery stood (at the side of the hill on the east, on the 

 edge of the cliff overlooking the Bouet) was probably the 

 source of that part of the deposit. 



In the old pit the workings have been carried deep into 

 the disintegrated rock which itself yields a large proportion of 

 clay. Indeed, the bricks now being manufactured are made 

 of a mixture of this decaying clayey rock with a portion of 

 the more plastic clay from the new pit. Superimposed on 

 the decaying rock in the upper pit and underlying the clay is 

 a band of sand which will be referred to under the heading 

 " Sand." 



3. — Delaneey Hill. 



The opening of the soil on the north-west of Delaneey 

 Hill, for the purpose of obtaining water for greenhouse supply, 



