86 
Why do Mon 
Heat ‘Bett 
Because!}ig Water-H. 
Big Casings Help o 
ft re Tot* r 
T HE size of the fire pot of a 
furnace alone is not an indi¬ 
cation of heating power. Other 
parts must be 
in proportion. 
Moncrief Furnaces deliver more heat at 
lower cost because all parts bear the right pro¬ 
portion to each other. The extra size casings, 
or air chambers, allow a large current of air to 
circulate around the furnace and take the heat 
up into the rooms as fast as the fire pot creates it. 
Extra large water can supplies this circulating 
air with plenty of moisture. Properly moist¬ 
ened air at 55 degrees is more comfortable 
and healthful than dried>out air at 72 degrees, 
—and a lot cheaper. 
Moncrief Furnaces are well made of the 
best grey iron and finest sheet metals. You can 
have your choice of Pipe, Pipeless or Majestic 
Moncrief, in the size exactly suited to your 
needs,—at a price suited 
to your pocketbook. 
Distributed by 
E. L. GARNER F. H. HANLON 
177 23rd St., Jackson Hts.,Long Island, N. Y. Batavia, N, Y. 
Made by The Henry Furnace &. Foundry Co., Cleveland, Ohio 
MONCRIEF 
FURNACES 
Pipe - Pipeless -ThreePipe - Majestic-Honcrief 
Post Your 
Farm 
and 
Keep Trespassers Off 
We have had a new supply 
of trespass signs made up. 
This time they are made of 
extra heavy linen on which the 
lettering is printed directly. 
There is no card facing to be 
water-soaked by the rain and 
blown away by the wind. We 
have had these new signs made 
up of extra heavy material be¬ 
cause severe storms will tear 
and otherwise make useless a 
lighter constructed material. 
We unreservedly advise farm¬ 
ers to post their land and 
the notices we have prepared 
comply in all respects with the 
law. The price to subscribers is 
95 cents a dozen, the same rate 
applying to larger quantities. 
AMERICAN AGRICULTURIST 
461 4th Ave., New York City 
AUTOW ELECTRICAL 
BUSINESS 
EARN BIG MONEY 
WE TRAIN YOU 
to make $150 to $800 
and more a month in the 
automobile and electrical 
business. Learn in a few weeks by actual 
work with tools and motors. Rahe trained 
men earn big pay in big jobs or start their 
own prosperous business. Write for free il¬ 
lustrated catalogandspeciallowtuition rate. 
Free R. R. fare, and room and board offer. 
RAHE Auto & Electrical SCHOOL 
Dept. A. I. 
916 Forbes Street Pittsburgh, Pa. 
"4 8£TT£/?JO£-B£T7£P P4Y‘ 
LATE CORN 
SAVE IT WITH 
PHILADELPHIA 
SILOS 
Opening Roofs for full silo with¬ 
out refilling. Free catalogue. Easy 
payment plan. Special low cash 
prices now. Shipment in 24 hours. 
E. F. SCHLICHTER CO. 
Box AA. 10 S. 18th St., Philadelphia, Pa. 
Reduces Strained, Puffy Ankles, 
Lymphangitis, Poll Evil, Fistula, 
Boils, Swellings; Stops Lameness 
and allay8 pain. Heals Sores, Cuts, 
Bruises, Boot Chafes. It is a 
SAFE ANTISEPTIC AND GERMICIDE 
Does not blister or remove the 
hair and horse can be worked. Pleasant to 
use. $2.50 a bottle, delivered. Describe your 
case for special instructions and Book 5 R Free. 
W. F. YOUNG, Inc., 579 Lyman St., Springfield, Mass. 
Save Soft 
Corn! 
Save this year’s late soft 
corn in HOOSIER SILOS. 
Turn your late crop into a big 
money-maKer by preserving 
for winterfeeding. HOOSIER 
SILOS best value on the 
market. Prompt shipments 
certain. Order now to insure 
having your silo ready for 
filling. Write for special free 
bulletin describing: how to make 
big profits from late corn. 
HOOSIER BUILDING TILE & 
SILO COMPANY 
Dept- A-3 Albany, Ind. 
W T' Killed with PARAFIX. (Pure Paradichlorbenzene, 
■V t i t, , I recommended by U. S. Gov. & State Exp. Sta.) 
Full instructions, results guaranteed or money 
VIA back. Booklet FREE. Treat 10 trees $1. 
HL # gv r . rv 50 trees $3. Postpaid or C. O. D. Dept K. 
w *^““**^ w The Parafix Co., 7 East 42nd St., N. Y. C. 
P/1S flCORN HARVESTER Worth its weight 
"T"Ih . —— in gold to every 
farmer raising corn, cane and kaffir in rows. 
Only $25 with handle tyin* attachment. Testimonials from 
pleased customers in every state. FREE catalog showing 
Pictures of Harvester. PROCESS MFC. CORP., SAUNA, KAN. 
American Agriculturist, August 9, 1924 
Questions About Mechanics 
Perhaps One Answers Your Problem 
I would like to know if a sound clutch can be slipped 
by the throttle while it is in high gear without releasing 
the clutch pedal. This question has been under dis¬ 
cussion for sometime in our neighborhood. One says it 
can, another says the contrary. We would like to know 
your opinion.—G. F. H., New York. 
W E do not think that a sound clutch 
. can be slipped by the throttle when 
it is in high gear and without releasing the 
clutch pedal. To strengthen our opinion 
we quote from an accepted authority— 
Dykes Automobile and Gas Engine 
Encyclopedia, which states, “A well- 
adjusted clutch takes hold gradually, 
does not slip after it has come to a seat 
and releases instantly when the pedal is 
depressed.” It may interest you to 
know of the following reasons for a clutch 
slipping, after it has been engaged: 
burned or worn clutch lining, clutch 
leather oily and greasy, leather worn 
down, clutch spring tension weak, clutch 
shift out of line, ridge worn on the rear of 
clutch leather.—F. G. B. 
How Should a Battery Be 
Recharged? 
I own a farm electric lighting plant. What I would 
like to know is, should the specific gravity of the electro¬ 
lyte in the cells of the battery be allowed to run down to 
about the minimum before recharging or should it be re¬ 
charged more frequently? Is it best to keep the battery 
fully charged or to let it partially discharge?—A. K. B., 
Pennsylvania. 
A horsepower is equivalent to 33,000 
foot-pounds a minute. Suppose a small 
stream has a fall of ten feet and that 
by measuring it is found that 400 gallons 
of water are flowing a minute. These 
400 gallons of water will weigh about 
3300 pounds, and since this weight is 
falling through a distance of 10 feet, the 
power of the stream would be 3300 
pounds x 10 or 33,000 foot-pounds a min¬ 
ute. In a similar way, the power of anv 
stream may be determined. The fail 
and- the flow of water per minute must be 
measured. 
Suppose you desire to generate 1000 
watts. horsepower should be avail¬ 
able in the stream. horsepower is 
equivalent to 82,500 foot-pounds. Sup¬ 
pose you have a fall of 15 feet. To ob¬ 
tain 2 >2 horsepower, you would have to 
have 5500 pounds of water falling the 
distance of 15 feet each minute. Since 1 
gallon weighs 8 1-3 pounds, 5500 pounds 
would be about 663 gallons. This ex¬ 
ample illustrates how you may deter¬ 
mine the power of your stream. 
Galvanized Roofing a Lightning 
Protector 
I would like to know if it is any protection from lightning 
by using galvanized roofing? If so, is it necessary to 
connect a ground wire to the roofing.—R. G. F., New 
York. 
T HE battery is made for the conve¬ 
nience of the user. It is not necessary 
to recharge it every time it is used a little /GALVANIZED roofing is a protection 
nor is it necessary for the user to wait from lmht.nins. Two onnnsitp cnrnm 
until the battery is exactly discharged 
before starting to recharge. If it is your 
experience that the capacity of the bat¬ 
tery is sufficient to last four or five days, 
it would be well to charge it twice a week, 
adding an overcharge about every two 
from lightning. Two opposite corners 
of the roof must be grounded. The ridge 
of the roof should be capped with a sharp 
edged piece and not a rounded piece. Anv 
cupolas should be grounded to the roof 
and any chimney should have rods 
grounded to the roof. Galvanized roofing, 
weeks. If you find that the capacity of grounded and installed with a sharp 
the battery is enough for ten days use, it 
would be sufficient to charge up once a 
week adding an overcharge about every 
two weeks. 
It is not necessary to keep the battery 
fully charged nor is it necessary to keep 
it partially charged. It should be used 
as required, taking care not to over dis¬ 
charge it, not to charge it at too high a 
rate, and that it receives an overcharge 
regularly. 
Measuring Power of Water 
What size wheel and how much water would be re¬ 
quired, or how many gallons a minute, to run a thousand 
or fifteen hundred watt 110 volt generator? Would a 
turbine be better than a steel wheel? I would appre¬ 
ciate any information that you could give about a water 
wheel.—S. F. S., Pennsylvania. 
I N general, the turbine type of wheel is 
best adapted to medium falls and com¬ 
paratively large volumes of water, the 
impulse wheel to the use of high heads and 
comparatively small amounts of wafer. 
The overshot requires very little water 
and uses falls down 
to four or five feet, 
the undershot is used 
on falls as low as three 
feet, and both types of 
wheels are used where 
there is insufficient 
water for the turbine 
and not enough head 
for an impulse wheel. 
The size of overshot 
wheel necessary to gen¬ 
erate 1000 to 1500 
watts will depend upon 
the fall you have and 
the amount of water 
yoq have. A water¬ 
power equivalent to 
horsepower will be 
required to generate 
1000 watts and about 
4 horsepower to gen¬ 
erate 1500 watts. These 
figures make a liberal 
allowance for losses. 
The power of any 
stream is determined 
by the fall and the 
weight of the water’. 
ridge, gives good protection.—F. G. B. 
“I thought I had this daylight 
saving puzzle solved by carrying 
one watch with standard and 
one with daylight saving time, 
and now I’ve forgotten which is 
which.”— Life. 
One Size of Pipe Preferable 
In piping, from a spring to the house, is it better to 
use all M-inch pipe or is it better to use larger pipe, say, 
1 'f-ineh pipe reducing to 1-inch then to ^-mch and 
finally to ^ 2 -inch? Which is bestr—A. S., New York. 
I F you had mentioned the distance it is 
from your spring to the cellar wall 
and how much flow you have, it would 
have been possible to give you very 
definite information. As it is we will 
have to substitute conditions. The size 
of pipe used under any set of conditions 
will determine the amount of water avail¬ 
able at the end of the pipe and the pres¬ 
sure that will be realized. 
Suppose you had 50 feet of head and 
that it was 400 feet from the spring to 
the, cellar wall and that you desired 5 
gallons per minute to flow through the 
pipe. To force 5 gallons of water through 
100 feet of ^-inch pipe will require 10)4 
feet of head and for the 
400 feet there would be 
used up 42 feet of your 
available 50, leaving 
you 8 feet at the cellar 
for pressure. If, on the 
other hand, you used 
100 feet of the 1 j^-inch 
pipe, 100 feet of the 
1-inch, 100 feet of the 
K-inch and 100 feet of 
j^-inch pipe, it would 
require nearly 56 feet 
of head to obtain 5 
gallons per minute at 
the house. Under the 
conditions assumed 
above and using four 
different sizes of pipe, 
you would actually get 
less than 5 gallons per 
minute at the house 
and practically no 
pressure. 
Try soaking a hard 
paint or varnish brush 
in hot vinegar to soften 
it. 
