98 
FLORIDA STATE HORTICULTURAL SOCIETY. 
ary pump, with a five-inch suction and a 
four-inch discharge maximum capacity 
of which, is 335 gallons per minute, with 
a guaranteed capacity of 250 gallons per 
minute. We have a four-inch main run¬ 
ning through the center of the 30 acres 
under Irrigation and from this main are 
laterals every 150 feet, starting out with 
two-inch pipe and running down to one 
inch, with three-fourths inch stand pipes 
150 feet apart over the entire 30 acres, so 
that a 75 foot piece of three-fourth inch 
hose connected with two opposite hydrants 
will meet each other. The spray rods 
are made of three-fourth inch pipe, six 
feet long tapered down to a point at the 
lower end to stick into the ground, with 
a T about 18 inches from the lower end 
for connecting the hose and on top of the 
spray rod is a McGowan sprayer.. We 
run twenty sprays at a time with three- 
fourth inch hose moving them from cen¬ 
ter to center, when the ground is suffici¬ 
ently moistened. Last year I found that 
our twenty spray rods were giving twelve 
gallons per minute all over the grove, it 
took us six days last May to spray the en¬ 
tire grove, with an amount of water equal 
to one inch of rain fall, according to fig¬ 
ures .given to me by Prof. Rolfs, that is, 
it will take about four or five hundred 
gallons to every 30 square feet to equal 
one inch of rain fall. The engine that we 
are using is made by the White-Blakleslee 
Manufacturing Company, of Birming¬ 
ham, Alabama. We have a three-thou¬ 
sand gallon Tank thirty feet from the 
ground, connected with our Irrigating 
Plant, this gives us pressure enough to 
wash down our budded trees through one- 
hundred feet of three-fourth inch hose 
with a nozzle on same without using the 
Engine, two men working at a time. 
With the Engine running we can easily 
wash down trees from thirty to thirty- 
five feet through ten or twelve lines of 
hose at a time. We are now trying to 
wash the spider off the grape fruit trees 
with the tank pressure, as we cannot get 
sufficient labor to work many nozzles at 
a time. 
DISCUSSION. 
Dr. Bessey.—Mr. President, I would 
like to ask whether any one present is 
familiar with the recent work that has 
been done with the processes invented in 
Germany for combining calcium with 
nitrogen of the air; it has been shown 
that this compound can be produced very 
cheaply and very satisfactory results have 
been claimed for it. 
No response. 
Maj. Healey.—In the old days we used 
to fight this fertilizer business to a finish. 
We did not have quite so much science 
then as we have now. It strikes'me that 
if these fertilizer men would give us an 
“electro-magnate” that would turn us out 
ten hours work for $1.00, it would be of 
interest to us. The time was when this 
society was the best posted of any in the 
United States but that was the time be¬ 
fore it fell into the hands of the fertilizer 
men. We thrashed out our own compost 
pile and I think we were capable of know¬ 
ing how to combine the necessary ele¬ 
ments to make up the necessary fertilizer 
for a large grove. 
It is a curious proposition that of all 
the members here on the fertilizer com¬ 
mittee that not a man has a word to say 
as to where the cheapest source of am¬ 
monia can be found. He says, if you 
will use my fertilizer you will get a cer- 
