462 L. A. COTTON. 



The curve of the water level is drawn to a scale on which 

 one centimetre measures twenty feet of water. An increase 

 in the ordinate corresponds to a rise of the water level. 

 The actual water level at the 24th February, 1915, was 

 twenty-two feet above the river bed at the site of this 

 instrument. The abscissae represent the times correspond- 

 ing to the ordinates and are drawn to a scale of twenty 

 days to one centimetre. 



Plate LXII. 



This map indicates the position of the Murrumbidgee 

 River and its tributaries within the area affected by the 

 Burrinjuck Water Conservation Scheme. The positions of 

 the river channels are marked in firm lines, and the area 

 which will be submerged when the dam is full is repre- 

 sented by the dotted lines. The three pendulums (numbered 

 1, 2 and 3) are situated at the intersections of the three 

 rectangular crosses marked on the map. The deflection of 

 the vertical for each instrument for the period, 22nd 

 February to 21st October, 1915, is stated in seconds of arc, 

 and the direction of the deflection is shown by an arrow 

 marked at each station. 



