DURABILITY OF A HORSE.

A horse will travel 400 yards in 4-1/2 minutes at a walk, 400 yards in 2 minutes at a trot, and 400 yards in minute at a gallop.  The usual work of a horse is taken at 22,500 lbs. raised 1 foot per minute, for 8 hours per day.  A horse will carry 250 lbs. 25 miles per day of 8 hours.  An average draught-horse will draw 1600 lbs. 23 miles per day on a level road, weight of wagon included.  The average weight of a horse is 1000 lbs.; his strength is equal to that of 5 men.  In a horse mill moving at 3 feet per second, track 25 feet diameter, he exerts with the machine the power of 4-1/2 horses.  The greatest amount a horse can pull in a horizontal line is 900 lbs.; but he can only do this momentarily, in continued exertion, probably half of this is the limit.  He attains his growth in 5 years, will live 25, average 16 years.  A horse will live 25 days on water, without solid food, 17 days without eating or drinking, but only 5 days on solid food, without drinking.

A cart drawn by horses over an ordinary road will travel 1.1 miles per hour of trip.  A 4-horse team will haul from 25 to 30 cubic feet of lime stone at each load.  The time expended in loading, unloading, etc., including delavs, averages 35 minutes per trip.  The cost of loading and unloading a cart, using a horse cram at the quarry, and unloading by hand, when labor is $1.25 per day, and a horse 75 cents, is 25 cents per perch—­24.75 cubic feet.  The work done by an animal is greatest when the velocity with which he moves is 1/8 of the greatest with which he can move when not impeded, and the force then exerted .45 of the utmost force the animal can exert at a dead pull.

COMPARATIVE COST OF FREIGHT BY WATER AND RAIL.

It has been proved by actual test that a single tow-boat can transport at one trip from the Ohio to New Orleans 29,000 tons of coal, loaded in barges.  Estimating in this way the boat and its tow, worked by a few men, carries as much freight to its destination as 3,000 cars and 100 locomotives, manned by 600 men, could transport.

HINTS TO YOUNG HOUSEWIVES.

Glycerine does not agree with a dry skin.

If you use powder always wash it off before going to bed.

When you give your cellar its spring cleaning, add a little copperas water and salt to the whitewash.

A little ammonia and borax in the water when washing blankets keeps them soft and prevents shrinkage.

Sprinkling salt on the top and at the bottom of garden walls is said to keep snails from climbing up or down.

For relief from heartburn or dyspepsia, drink a little cold water in which has been dissolved a teaspoonful of salt.

For hoarseness, beat a fresh egg and thicken it with fine white sugar.  Eat of it freely and the hoarseness will soon be relieved.