Supplement to the " Tropical AgricuUumt.^' [Dec, I, 1900. 
viiU pro\e to be 6,272,640 equare ircbes. An inch 
deep of water on this ncre will be qs many cubic 
iuches of water, which, at 231 to the gallon is 
equal to 27,154 gallons. This immense quantity 
of water will weigh 228,190 lbs. or 114 tons. 
One hundredth of an inch (•01) alone is equal to 
over one ton of water to the acre. 
It was reported in the Government News some 
time ago that for some unaccountable reason a 
large proportion of the rice grown in South-west 
Louisiana turned out red. The coloured rice was 
found by chemists to be as nutritious as the 
white, but still there is a prejudice against the 
former and this affected the selling ;^i ice. 
The following recipe^is given by the Queensland 
AgriculturalJournal to prevent rust: Melt one lb. 
lard and one ounce camphor. Skin the mixture 
carefully and stir in a sufficient quantity of 
black lead to give the metallic colour. After 
clearing machinery thoroughly, smear with the 
mixture and let it remain for a day and tlien 
rub clean with a soft cloth. 
Says the Sydney Mail : — Small particles of 
cinder and metal are constantly getting into the 
eyes of engine-drivers and stokers. They hav* 
one invariable way of getting them out. No 
sooner has the driver of an engine got a na'tv 
bit of grit in his eye, then his companion, the 
stoker, opens the eyelids quite wide and licks 
out the unseen fragment — which might produce 
tragic results sometimes — with his tongue. Th« 
public knows little of this heroic remedy, but on 
every line in the world it is being applied every 
hour of the daj', All surgeons recognise that this 
is often, with all their beautiful instruments, 
the only way. And amongst the thousands of 
women connected with tlie English fishing trade 
who have to clean herrings it is also practised as 
the only method of getting ont of the human eye 
the very minute herring scales that lodge there 
and scon produce serious mischief if not removed. 
Four hundred pounds weight of hen manure is 
equal in value to 2,4001b. of farmyard manure. 
In a ton of fowl manure analysis showed 48*60 lb. 
phosphoric acid, 481b. potash, and 67 lb. nitrogen ; 
whilst farmyard manure contained only 6 lb. 
phosphoric acid, 10 lb. potash, and II lb. nitrogen 
in one ton. Much of the value of any manure 
depends upon its freshness, and whether it has 
been kept under cover and dry, 
