Food for i Tea-cup holds i gill 



Plants i Large Wine-glass holds 2 ounces 



^ i Tablespoonful is equsl to l /* ounce 



Capacity of Cisterns for Each 10 Inches in Depth. 



25 feet in diameter holds 3059 gallons 7 feet in diameter holds 239 gallons 



20 feet in diameter holds 1958 gallons 6% feet in diameter holds 206 gallons 



15 feet in diameter holds noz gallons 6 feet in diameter holds 176 gallons 



14 feet in diameter holds 959 gallons 5 feet in diameter holds 122 gallons 



13 feet in diameter holds 827 gallons 4^2 feet in diameter holds 99 gallons 



12 feet in diameter holds 705 gallons 4 feet in diameter holds 78 gallons 



ii feet in diameter holds 592 gallons 3 feet in diameter holds 44 gallons 



10 feet in diameter holds 489 gallons z l / 2 feet in diameter holds 30 gallons 



9 feet in diameter holds 396 gallons 2 feet in diameter holds . 19 gallons 



8 feet in diameter holds 313 gallons 



Surveyor's Measure. 



7.92 inches i link, 25 links i rod, 4 rods i chain, 10 square chains or 160 

 square rods i acre, 640 acres i square mile. 



Cubic Contents of Different Measures. 



A box 24 inches long by 16 inches wide, and 28 inches deep, will contain 

 a barrel, or three bushels. 



A box 24 inches long by 16 inches wide, and 14 inches deep, will con- 

 tain half a barrel. 



A box 16 inches square and 8 2-5 inches deep, will contain one bushel. 



A box 16 inches by 8 2-5 inches wide, and 8 inches deep, will contain 

 half a bushel. 



A box 8 inches by 8 2-5 inches square, and 8 inches deep, will contain 

 one peck. 



A box 8 inches by 8 inches square, and 4 1-5 inches deep, will contain 

 one gallon. 



A box 7 inches by 4 inches square, and 4 4-5 inches deep, will contain 

 half a gallon. 



A box 4 inches by 4 inches square, and 4 1-5 inches deep, will contain 

 one quart 



A box 4 feet long, 3 feet 5 inches wide, and 2 feet 8 inches deep, will 

 contain one ton of coal. 



Strength of Ice of Different Thickness. 



Two inches thick Will support a man. 

 Four inches thick Will support a man on horseback. 

 Five inches thick Will support an eighty-pounder cannon. 

 Eight inches thick Will support a battery of artillery, with carriages and 

 hones. 



Ten inches thick Will support an army; an innumerable multitude. 



