312 
The RURAL NEW-YORKER 
February 22, 1919 
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AN EVENING in early Spring. The 
season’s first heavy rain is coming 
down. It’s late—and the stock must be 
fed and watered. And when he went to 
town Thursday he forgot to get a new 
pair of boots. Too warm for the felts. 
Nothing to be done but haul out the old 
“Hi-Press” shorts and make them do. So 
away he squashes through the muck. 
Thank goodness—that’s done. What’s this? 
Dry feet? Let’s see—hm—why, he threw 
those boots away last fall as worn out. Seems 
like he simply can’t make them give up. 
Positively, nothing but “Hi-Press” for him 
hereafter. And he plunges his hand into 
his jeans and hauls out a crisp new five. 
* ‘Here, Mary; put this with your egg money. 
First time in my life I didn’t have to buy a 
new pair of boots in the Spring.” 
The main features of that story are being 
enacted all over the country. More wear 
than you ever got before—and more com¬ 
fort, too. 40,000 dealers sell the footwear 
with the Red Line ’Round the Top. 
THE B. F. GOODRICH RUBBER COMPANY 
AKRON, OHIO 
GOODRICH 
HI-PRESS 
Bubber Footwear 
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Acre $1 
6-Ac e I’ki!., i5 
Prepaid 
For all legmrifiK. State ltind wanted. Nodules 
guaranteed. Start a nitrogen factory on y<mr 
farm by usin/ McQueen’s Inocuiator. Order 
now or ask for literature. 
McQUEEN BACTERIA CO., Box 220 BALTIC, OHIO 
HAY 
PRESS 
40styfes and sizes 
or every purpose. 
Catalog free. 
COLLINS PLOW COMPANY 
2044 Hampshire St.. Quincy. III. 
A Pedigreed Thoroughbred 
TWELVE YEARS of continuous development. 
Each year an extra feature- It’s a record we 
are proud of. 
Almost any spreader looks 
■well runs well when new. 
But. you want a spreader 
that will'run well for years to 
come, not for a year or so, and 
that is just what you get in 
The Frederick County 
SPREADER 
A Spreader that will work 
for you with ease and if given 
proper care will last a lifetime. — —- 
Most of ail. you will like the patented features found exclusively on the Fred, 
erick Countv Spreader They are the higgest Money and Labor Savers to be 
found on any machine. The price is surprisingly low. No freight to pay. Order 
today and save money on a Spreader if you order now before the price advances. 
W00DSB0R0 LIME SPREADER COMPANY, Dept. 0.50, Weedsbore, Maryland 
Simple Science 
By Dr. F. D. Crane 
Carbon Remover 
What is a good carbon remover which 
will not damage the metal of the engine? 
Kingston, N. Y. J. l. ii. 
The secret preparations so far exam¬ 
ined do not seem to have any special 
value. The best thing to use is probably 
denatured alcohol, which, if allowed a 
few hours, will start most cases of carbon, 
and which is harmless to the metal. 
stains and to disinfect. Its large scale 
use is as a bleach and as a handy way to 
transport chlorine, although the use of 
pure chlorine, compressed in strong cylin¬ 
ders, is taking its place in many cases. 
Cleanser for Removing Tar 
Vlmt will remove the tar used on roads 
from the wheels and bodice of autos? I 
have tried gasoline and kerosene without 
much benefit, and have thought of carbon 
tetrachloride. A. F. 
YVoonsocket, It. I. 
Carbon tetrachloride, now about 15 
cents a pound in large lots, is one of the 
best solvents for such tars, and wi'l go 
much farther and do about as well if di¬ 
luted with an equal bu»k of gasoline. In 
fact, mixed solvents often work better 
than either singly. The tar is apt to be 
a solvent for the varnish or enamel used 
on the auto body, so, when all comes off 
together, do not blame the remover you 
have used. For that reason the tar should 
be removed as soou as possible; it will 
spot the finish in a few hours. 
Filtering Oil 
IIow can I filter the oil from the crank 
case of a tractor so it can be used again? 
Rowland, X. Y. J. w. M. 
Get a fairly large funnel, and put in 
a cone of half-inch chicken wire, nice 
and smooth, to keep the paper from the 
funnel. Then get a few sheets of large 
filter paper from a druggist, the gray 
kind that they use to filter extracts. If 
he is a friendly druggist he will show 
R&IMt TCUUER5 
Reproduced from the X. Y. Evening Telegram 
you how to fold it so it opens in plaits, 
but a simple cone fold will do if you 
have wire in the funnel. Let the oil rest 
for a few days in a warm place, then 
pour in the paper in the funnel and keep 
it in a warm place. It will go through 
rather slowly, but should be quite clear. 
You may have to return the first portion 
to the funnel. 
Write for 
Low 
Delivered 
Canned Pineapple in Corroded Tins 
I have seven pint tin cans of Hawaiian 
pineapple that were stored in a slightly 
damp place. They have rusted just 
enough to start them leaking at the 
seams, and the syrup 1ms mostly drained 
away. Of course the fruit is still in 
the tins. This is very choice fruit, hut is 
there danger of poisoning from the action 
of air on the possibly exposed parts of 
tin? I do not want to take any chance <>f 
poisoning from eating it. E. p. k. 
Tennent, X. J. 
At this distance and with merely the 
facts you have given, I can do little ex¬ 
cept to say that there will be no harm 
from either the tin or the iron from the 
cans. Fven if there seems to have been 
some action, unless you can taste a metal 
in the juice, it will be harmless, and even 
if you do get. a bit of iron flavor, it is 
unlikely that it can harm you. The only 
danger, and- that is something that no 
one can tell without looking, is that 
molds or other spoilage germs have come 
in with the air that must have sucked in 
when the syrup went out. and have 
spoiled the slices of fruit. If. when you 
open the can, there is evident spoilage, 
you will of course uot cat them. If there 
is no evidence of germ growth or fer¬ 
mentation, by sight, taste or smell, you 
can be sure none has taken place. To 
be very sure, a fairly strong syrup can 
be.made and the fruit brought to a sharp 
boil in that, which will kill anything. 
This is the best I can do for you with 
the facts at my disposal, but if you want 
to ask any more questions, go ahead, and 
I will do what I can to answer them. 
Chloridn of Calcium and Chloride of Lime 
What is the chemical difference be¬ 
tween chloride of calcium and chloride 
of lime? I. S. B. 
Black Hall, Conn. 
Calcium is the name given to the fairly 
hard and heavy white metal which is the 
base of all lime compounds. It is rarely 
seen free, as it is at once acted on by 
the moisture present in tin* air and 
changed to calcium hydrate, which is the 
same as slacked lime. Limestone as 
found iu nature is the carbonate of cal¬ 
cium. heating it drives off the carbon and 
two-thirds <>f the oxygen, leaving calcium 
oxide, quicklime, which gives, with water, 
the hydrate. If we treat either the car¬ 
bonate, or the oxide, or the hydrate, to 
■give the simplest examples, with hydro¬ 
chloric (muriatic) acid, the chlorine goes 
to the calcium, and we have chloride of 
calcium. If the carbonate was used, the 
carbonic gas goes off, if either of the 
other salts mentioned, water is the other 
product. Many other salts of lime will 
give calcium chloride also. In any event, 
we have a very easily soluble salt, which, 
in water, lowers the freezing point con¬ 
siderably. It is very cheap, because it is 
a by-product in many chemical processes, 
usually it can be had for the cost of sav¬ 
ing it. At present it has very few uses. 
"Chloride of lime” is quite another mat¬ 
ter. It was named at a time when it 
was not understood at all. even now it 
is not very clear what it is. although it 
has been known a hundred and twenty 
years. It is made by passing free 
chlorine, a gas. over calcium hydrate, 
slaked lime, to saturation. The slaked 
lime works* best when it is just a little 
damp. The resulting substance is 
“chloride of lime,” and it put up for re¬ 
tail sale in tlie little cans with which you 
arc familiar. It is about the best of the 
disinfectants for practical use, and is also 
used in making javelle water to take out 
Greasing the Griddle 
Why is fat used on a griddle to keep 
cakes and such things from sticking? 
What is the chemical action? c. II. 
New l T ork. 
This is another side of the problem of 
stickiness, and the chemical action is 
secondary. Cooked starch, which is the 
basis of all cakes and breads, is sticky, 
as it dries, toward most metals, although 
attachment is apt to be temporary, and 
is not sticky toward fats and oils. These 
are stable or decompose slowly at tlie 
griddle temperature, so we put a thin 
layer wf fat over the metal, and the starch 
is cooked by the heat of the layer of hot 
fat, really, and not on the griddle. But 
it picks up most of this fat, so we have 
to renew the layer every cake or two. 
But cooked starch is not sticky toward 
soapstone, so you will often find a soap¬ 
stone griddle which is used without any 
fat. A pure aluminum griddle covers it¬ 
self at once with a very thin layer of 
oxide, and starch is not sticky toward 
this, or at least not so very sticky, and 
so there is some use for aluminum grid¬ 
dles. But tin* starches are not all the 
same, and that of buckwheat is about the 
stickiest, and for tlris reason neither 
soapstone nor aluminum griddles work 
as well with buckwheat as with wheat 
cakes. Another effect of this grease is 
mechanical in that it usually slowly evap¬ 
orates with more or less decomposition, 
and thus tends to float the cake on a layer 
of vapor, just as a drop of water floats 
mi a hot stove. Of course the vapor from 
the water of the cake helps also. Tt is 
for this reason that a cake will burn on 
a cool griddle and bake on a hotter one. 
there is a point where the batter floats 
on the layer of grease and then, as it 
cooks, floats on a layer of steam That 
is the way cakes are baked iu all R. X.-Y. 
households. Oh, boy! 
Formula for Stove Fclish 
Wlmt Is a good working formula for a 
non-explosive or fireproof liquid stove 
polish? o. A. K. 
Medway. Mass. 
All stove polishes we have examined 
depend for their blackening effect on two 
tilings, graphite and lampblack. The 
graphite is slower to burn till. but. by 
itself, gives too gray and shiny an effect, 
so tin* lampblack is added to give a. deeper 
black at first, even tbougli it is not so 
permanent. The next problem is to get 
them to stick, and tin* first device is to 
add a little iron sulphate (copperas), 
which forms a basic iron rust and lasts 
pretty well, but finally turns red. An- 
is to add a little sodium sili- 
glas.s). which holds the coat 
makes a fairly satisfactory 
course both of these polishes 
either to a paste or a liquid, 
other device 
cate f wntei 
better, and 
polish. < )f 
are made up 
with water, so they answer your require¬ 
ments as to non-inflammability. 
Another scheme to get the polish to rub 
iqi quickly and stay put is to add a waxy 
body, and here the temptation is to use 
something cheap to dissolve it. There is 
only one available cheap thing that is 
unburnable, and that is carbon tetrachlor- 
(Continued on page ”14) 
