The sun., 1898-02-27

narrow tires would be compelled either 70 pass
over the ruts made by the narrow tires or select
drausht h IL supns Ror ora he eicnes SSse
greater for him than for the users OF the narrow
tires in this condition OF road surface"
Experiments WerO conducted at length to de-
termine the facts in tho matter. A clay road,
thoroughly dry but cut into ruts of nm average
depth OF slo inches, with ridges OF baked clay 2is
inches high on each side Of ca ch rnt was chosen.
Tho marrow tires running in these ruts needed
from 33l to 342.s pounds of power. The broad
tire on going over these ruts for a distance OF
ao ao0 Ieet nee needed on on the fret trip pull OF 62l
-, " The six.inoh tires almost completely filled
me narrow tire rut in four round trips" says
ing hauled over this road its surface was
smoothed and improved. Every run with the
broad tires was benefit; every run with the
narrow tires was an injury"
On tho whole. taking the roads as they are
found tho ycar round in Missouri or in any sim
letin says 1t would be greatly to the advantage
OF any teamster TO use siX.inch tires regardless
OF what his neighbors used.
- The above refers TO road work exclusively.
For farm work one needs to look at some OF the
illustrations Of tho bulletin to appreciate the
sod the broad tires had tho advantage by 80 o
per cent. When the wagons were run In their
tires cut ruts twelve to fiftccn inches deep and
the broad from four to five deer. The per.
sent1ge cent, ,Se of advantage in power required
run on soft sod the broad tires had an advantage
OF 81 per cent. And SO II ran on pasture and on
ploughcd land. both old and new. Everywhere
deep as tho broad, and sometimes more. for ON
dry land the broad tires cut not at all aud wcrc
often benefit. rs rollers are.
On tho whole the experiments were made under
circumstances that gave undue advantage to
narrow tires. Thus the average pull was alone
considered. but diagrams OF the dynamometcr
show that the narrow tires made n widely
huctuRtinp pull There were strains running
up to l.ioo and 600 pounds whore the aver.
age was only 400 or SO. The effect OF these
tremendous strains on horses is well known. rs
is the effect on wagon and harness. Tho broad
tires showed no such fluctuations, the greatest
heng only 200 pounds rise above or fall below
the average.
The bulletin lays especial stress on one matter
when II says thai 1t should be rcmem bered that
most Of the trcghting done by the farmers in
the middle West is on tho farm itself in hauling
feed from their fields and hauling manure from
market is insignificant. relatively because. the
product Of the farms goes as stock on foot. or ms
pork ana milk products In short, as fast as
the narrow-tircd wheels now owned by the
without exception. by the broad.tired wheels.
IL would be profitable to every farmer to have
broad.tircd wagons, il for no other use than on
his farm.
Facts arc given to show that six inches is the
lropcr width. and, further. that front and rear
aNlcs should be of the same length on the farm
IL not on the highway. The bulletin ends with
tho following:
interest 1t would seem to be better policy to
concentrate all efforts on the simple proposition
OF inducing the farmers and tcamsters to use
broad tires, not Complicate the question with
features OF doubtful value which would involve
material modification OF the form of the
wagons now built for common farm and road
purposes and more or less inconvenience to the
users Of the same