ix: ABSTRACT OF PROCEEDINGS. 
Mr. NoRMAN MacTaccart (in the absence of the Chair- 
man) gave a short address, welcoming the other Societies 
to the Royal Society’s House. During the year the 
Engineering Association, and the Institute of Architects 
had made the Royal Society’s building their head quarters, 
and he hoped that extra accommodation would be provided 
so that the Hlectrical Association could also have rooms. 
All three Societies held their meetings here, and in the 
name of the Hngineering Section of the Royal Society he 
welcomed them to this house. 
19th September, 1906. 
Mr. T. H. HOUGHTON in the Chair. 
Mr. R.'T. McKay read a paper on “The available Water 
derivable from gathering grounds, the loss, the reason for 
such loss, and the Relation between Rainfall and Discharge 
of the Murray River and its Tributaries.’’ The paper was 
illustrated by numerous lantern slides of diagrams which 
showed the percentage of run off very clearly. After com- 
pleting his paper, Mr. McKay showed a number of lantern 
slides of views of the various rivers in drought and flood, 
and of the engineering works constructed on them. 
17th October, 1906. 
Mr. J. HAYDON CARDEW in the Chair. 
Mr. T. ROOKE read a paper entitled “‘Irrigation work in 
California and its relation tothe transmission of electricity.”’ 
The paper was accompanied by lantern slides illustrating— 
the style of power houses and plant, the nature of the 
country in its natural state and under cultivation, and some 
of the details of the systems of irrigation adopted. 
Mr. H. G. McKinney said that we owe a great deal to 
America, who has shown us how irrigation can be carried 
