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Acts and Resolutions of Congress. cause the weights or measures expressed or

PUBLIC-No. 183.

AN ACT to authorize the use of the metric

system of weights and measures.

referred to therein are weights or measures of the metric system.

SEC. 2. And be it further enacted, That the tables in the schedule hereto annexed, shall be recognized in the construction of contracts, and in all legal proceedings, as establishing, in terms of the weights and measures now in use in the United States, the equivalents of the weights and meas

Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That from and after the passage of this act, it shall be law-ures expressed therein in terms of the meful throughout the United States of America to employ the weights and measures of the metric system; and no contract or dealing, or pleading in any court, shall be deemed invalid or liable to objection, be

tric system; and said tables may be lawfully used for computing, determining and expressing, in customary weights and measures, the weights and measures of the metric system.

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RULE FOR ALL INTEREST.

SUMMARY OF DIRECTIONS FOR WORKING INTEREST OF ANY CONCEIVABLE PRINCIPAL TIME, AND RATE.

Place the Principal, Time, and Rate, on the right of a vertical line; and if the time is days, place 30 and 12 on the left; if the time is months, place 12 only, on the left; and if the time is years, place nothing on the left.

If the Principal, Time, or Rate is a mixed number, reduce it to an improper fraction, and place the numerator on the right, with the denominator on the left.

When the Principal is dollars, the answer is cents; in such case, two figures must be cut off for cents; when the Principal is cents, the answer is hundredths of cents; here, cut off two figures, commencing at the right, for hundredths, two more for cents, and the remainder at the left is dollars.The figures thus cut off for cents, hundredths, &c., must be whole numbers; while any existing fraction will only be a

fractional part of such cents or hundredths

When the time is months and days, or years, months and days, reduce the years to months, and add in all the given months; then reduce the days to the fractional part of a month, and annex this fraction to the whole number of months; reduce all to an improper fraction, and place the numerator on the right, and the denominator on the left. In such case, divide by 12 only. If the time cannot be reduced to the fractiona part of a month, reduce the whole ti me years, months and days, to days, and divide by 30 and 12.

If the time is years and months, reduce the months to the fractional part of a year; add to the years; reduce all to an improper fraction, and divide by the denominator only.

How to Judge a Horse.

A correspondent, contrary to old maxims, undertakes to judge the character of a horse by outward appearances, and offers the following suggestions, the result of his close observation and long experience:

If the color be light sorrell, or chestnut, his feet, legs and face white, these are marks of kindness. If he is broad and full between the eyes, he may be depended on as a horse of good sense, and capable of being trained to anything.

As respects such horses, the more kindly you treat them the better you will be treated in return. Nor will a horse of this description stand a whip, if well fed.

If you want a safe horse, avoid one that is dish-faced. He may be so far gentle as not to scare; but he will have too much goahead in him to be safe with everybody.

If you want a fool, but a horse of great bottom, get a deep bay, with not a white hair about him. If his face is a little dished, so much the worse. Let no man ride such a horse that is not an adept in riding -they are always tricky and unsafe.

If you want one that will never give out, never buy a large, overgrown one.

A black horse cannot stand heat, nor a white one cold.

If you want a gentle horse, get one with more or less white about the head; the more the better. Many persons suppose the parti-colored horses belonging to the circuses, shows, &c., are selected for their oddity. But the selections thus made are on account of their great docility and gentleness.

Discount and Premium. When a person buys an article for $1,00 20 per cent off, (or discount,) and sells it again for $1,00, he makes a profit of 25 per cent. on his investment. Thus: He pays 80 cents and sells for $1,00-a gain of 20 cents, or 25 per cent of 80 cents. And for any transaction where the sale or purchase of gold, silver, or currency is concerned, the following rules will apply in all cases. RULE 1st. To find premium when discount is given: Multiply 100 by rate of discount and divide by 100, less rate of dis

count.

RULE 2d. To find discount when premium is given. Multiply the rate of interest by 100, and divide by 100, plus the rate of premium.

Suppose A has $140 in currency, which he wishes to exchange for gold, when gold is 27 per cent. premium, how much gold should he receive? In this case the premium is given, consequently we must find the discount on A's currency and subtract it from the $140, as per rule 2d, showing the discount to be a trifle more than 21 per cent, and that he should receive $110,60 in gold.

pr ct. Dis. allows +5% pr ct. Pre. or profit

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In large cities nothing is more common than to see large business establishments, which seem to have an immense advantage over all competitors, by the wealth, experience, and prestige they have acquired, drop gradually out of public view, and be succeeded by firms of a smaller capital, more energy, and more determined to have the fact that they sell such and such commodities known from one end of the land to the other. In other words, the establishments advertise; the old die of dignity.The former are ravenous to pass out of obscurity into publicity; the latter believe that their publicity is so obvious that it cannot be obscured. The first understand that they must thrust themselves upon public attention, or be disregarded; the second, having once obtained public attention, suppose they have arrested it permanently; while, in fact, nothing is more characteristic of the world than the ease with which it forgets.

business man ever lived, used to say: I Stephen Girard, than whom no shrewder have always considered advertising liberally and long to be the great medium of wealth. And I have made it an invariable success in business, and the prelude to rule too, to advertise in the dullest times as well as the busiest; long experience having taught me that money thus spent is well laid out; as by keeping my business continually before the public it has secured me many sales that I would otherwise have lost.

Capacity of Cisterns or Wells.

Tabular view of the number of gallons contained in the clear, between the brick work for each ten inches of depth:

48 lb. per bushel.

62" 48"

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*Flax Seed by cust'm weighs 56 lb. per bush.

Facts on Advertising.

The advertisements in an ordinary number of the London Times exceed 2,500. The annual advertising bills of one London firm are said to amount to $200,000; and three others are mentioned who each annually expend for the purpose $50,000. The expense for advertising the eight editions of the "Encyclopædia Britannia" is said to have been $15,000.

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Brilliant Whitewash.

The Chemical Barometer.

in vain to save them, hit upon the expedient of having them harnessed as though goMany have heard of the brilliant stucco ing to their usual work; when, to his astonwhitewash on the east end of the Presi-ishment, they were led from the stable dent's house at Washington. The follow- without difficulty. ing is a recipe for it; it is gleaned from the National Intelligencer, with some additional improvements learned by experiments: Take half a bushel of nice unslacked lime, slack it with boiling water, cover it during the process to keep in the steam. Strain the liquid through a fine sieve or strainer, and add to it a peck of salt, previously well dissolved in warm water; three pounds of ground rice, boiled to a thin paste, and stirred in boiling hot; half a pound of powdered Spanish whiting, and a pound of clean glue, which has been previously dissolved by soaking it well, and then hanging it over a slow fire, in a small kettle within a large one filled with water. Add five gallons of hot water to the mixture, stir it well, and let it stand a few days cov

ered from the dirt.

It should be put on right hot; for this purpose it can be kept in a kettle on a portable furnace. It is said that about a pint of this mixture will cover a square yard upon the outside of a house if properly applied. Brushes more or less small may be used according to the neatness of the job required. It answers as well as oil paint for wood, brick or stone, and is cheaper. It retains its brilliancy for many years. There is nothing of the kind that will compare with it, either for inside or outside walls.

Coloring matter may be put in and made of any shade you like. Spanish brown stirred in will make red pink, more or less deep according to the quantity. A delicate tinge of this is very pretty, for inside walls. Finely pulverized common clay, well mixed with Spanish brown, makes a reddish stone color. Yellow-ochre stirred in makes yellow wash, but chrome goes further, and makes a color generally esteemed prettier. In all these cases the darkness of the shades of course is determined by the quantity of coloring used. It is difficult to make rules, because tastes are different. It would be best to try experiments on a shingle and let it dry. We have been told that green must not be mixed with lime. The lime destroys the color, and the color has an effect on the whitewash, which makes it crack and peel. When walls have been badly smoked, and you wish to have them a clean white, it is well to squeeze indigo plentifully through a bag into the water you use, before it is stirred in the whole mixture. If a larger quantity than five gallons be wanted, the same proportion should be observed.

How to get a Horse out of a
Fire.

The great difficulty of getting horses from a stable where surrounding buildings are in a state of conflagation, is well known.The plan of covering their eyes with a blanket will not always succeed.

A gentleman whose horses have been in great peril from such a cause, having tried

fashioned Eau-de-Cologne bottle, and put Take a long narrow bottle, such as an oldinto it two and a half drachms of camphor, and eleven drachms of spirits of wine; when the camphor is dissolved, which it will readily do by slight agitation, add the following mixture: Take water, nine drachms; nitrate of potash (saltpetre) thirty-eight grains; and muriate of amDissolve these salts in the water prior to monía (sal ammoniac) thirty-eight grains. mixing with the camphorated spirit; then shake the whole well together. Cork the bottle well, and wax the top, but afterwards make a very small aperture in the cork with a red-hot needle. The bottle may then be hung up, or placed in any stationary position. By observing the different appearances which the materials assume, as the weather changes, it becomes an excellent prognosticator of a coming storm or of a sunny sky.

Leech Barometer.

Take an eight ounce phial, and put in it three gills of water, and place in it a healthy leech, changing the water in summer once a week, and in winter once in a fortnight, and it will most accurately prognosticate the weather. If the weather is to be fine, the leech lies motionless at the bottom of the glass and coiled together in a spiral form; if rain may be expected, it will creep up to the top of its lodgings and remain there till the weather is settled; if we are to have wind, it will move through its habitation with amazing swiftness, and seldom goes to rest till it begins to blow hard; if a remarkable storm of thunder and rain is to succeed, it will lodge for some days before almost continually out of the water, and discover great uneasiness in violent throes and convulsive-like motions; in frost as in clear summer-like weather it lies constantly at the bottom; and in snow as in rainy weather it pitches its dwelling in the very mouth of the phial. The top should be covered over with a piece of muslin.

TO MEASURE GRAIN IN A BIN.-Find the number of cubic feet, from which deduct one-fifth. The remainder is the number of bushels allowing, however, one bushel extra to every 224. Thus in a remainder of 224 there would be 225 bushels. In a remainder of 448 there would be 450 bushels, &c.

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