MISCELLANEOUS TABLES. 



713 



Average Velocity of Various Bodies. 



Miles Feet 

 per hour, per sec. 



A man walks 3 



A horse trots 7 



A horse runs 20 



Steamboat runs 18 



Sailing vessel runs .... 10 



Slow rivers flow 3 



4 

 10 

 29 

 26 

 14 



4 



Miles Feet 

 per hour, per sec. 



Rapid rivers flow .... 7 10 



Moderate wind blows ... 7 10 



A storm moves 36 52 



A hurricane moves ... 80 117 



A rifle ball moves .... 1,000 1,466 



Sound moves 743 1,142 



Light moves 192,000 miles per sec. Electricity moves 288,000 miles per sec. 



Evaporative Powers of Fuel, etc. 



i pound of coal evaporates 9 pounds of water. 



i pound of coke evaporates 7% to 9 pounds of water. 



i pound of wood evaporates 4% pounds of water. 



i pound of turf (peat) evaporates 6 pounds of water. 



Stationary engines use from 3 to 7 pounds coal per horse power an hour. 



Locomotive passenger engines, 26 to 30 pounds of coal per mile. 



Locomotive freight engines, 45 to 55 pounds of coal per mile. 



Comparative Table. 



too Pounds of Hay are Equal to 



275 pounds of green Indian corn. 



442 

 360 

 164 

 1 80 

 J S3 



200 

 2OI 



J 75 

 339 

 504 

 179 



rye straw. 



wheat straw. 



oat 



barley " 



pea " 



buckwheat straw. 



raw potatoes. 



boiled " 



mangel wurtzel. 



turnips. 



rye and barley mixed. 



The following table shows the amount of hay, or its equivalent per day, required by 

 each loo pounds of live weight of various animals : 



Working horses 3.08 pounds. 



Working oxen 2.40 



Fatting oxen 5.00 " 



Fatting oxen, when fat . . . 4.00 

 Milch cows . . from 2.25 to 2.40 " 



Dry cows 2.42 pounds. 



Young growing cattle . . . 3.08 " 



Steers 2.84 " 



Pigs 3.00 



Sheep 3.00 " 



Growth and Life of Animals. 



Years Years 



Grow. Live. 



Dog 2 12 to 14 



Cat 1% 9 or 10 



Hare i 8 



Guinea pig 7 mos. 6 or 7 



