520 QUEENSLAND AGRICULTURAL gouRNaL. [1 Junz, 1900: 
General Notes. 
INDIA-RUBBER IN SIERRA LEONE. 
Tue United States Consul at Sierra Leone reports favourably on the local 
india-rubber industry. He states, however, that the native collectors are now 
frequently bleeding the roots of the tree as well as the body—a proceeding. 
which is as fatal to the tree as to the quality of the rubber. 
MEASURING STREAMS OF WATER. 
Mr. W. A. Ferveruererpr, Crowa Station, Lucindale, South Australia, 
writes :—During a trip through this district I was surprised, seeing the large 
number of bores in use, at the primitive and cumbersome method many 
managers and even the borers themselves use, to ascertain the volume of water 
per twenty-four hours, the most common being a 400-gallon tank, and timing 
the filling. ‘The accompanying method should be of great advantage to all 
haying bores, pumps, mills, &c., on a station. The gauge, being made of a 
board, could be carried on horseback, and the stream tried a mile or two away 
from the bore, giving an idea of the extent of soakage, &c., as well as at the 
bore itself. I am sure the enclosed table of gallons per day will be of interest 
to many of your New South Wales and Queensland readers. I do not think 
it has ever appeared in your valuable paper, or any other, before. The table is: 
based on Professor James Thomson’s formula, the water flowing over a V notch 
of 90 degrees. The V notch should be set with the two sloping sides equally 
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