208 FOOD FOR PLANTS 



Surveyor's Measure. 



7.92 inches 1 link, 25 links 1 rod, 4 rods 1 chain, 10 

 square chains or 160 square rods 1 acre, 640 acres 1 

 square mile. 



Strength of Ice of Different Thickness. 



Two inches thick — will support a man. 



Four inches thick — will support a man on horse- 

 back. 



Five inches thick — will support an eighty-pound 

 cannon. 



Eight inches thick — will support a battery of artil- 

 lery, with carriages and horses. 



Ten inches thick — will support an army; an in- 

 numerable multitude. 



Amount of Oil in Seeds. 



Kinds of S&ed Per Cent Oil Kinds of Seed Per Cent OU 



Rapeseed 555 Oats 6^ 



Sweet almond 47 Clover hay 3 



Turnip seed 45 Wheat bran 4 



White mustard 37 Oat straw 4 



Bitter almond 37 Meadow hay 3y2 



Hempseed 19 Wheat straw 3 



Linseed 17 Wheat flour 3 



Indian com 7 Barley 2% 



How to Kill Poison Ivy. 



Spraying with arsenate of soda (one pound to 

 twenty gallons of water) will kill all vegetation. 

 One application, if the plants are young and tender, 

 will do this. In the middle of the summer, however, 

 they should be cut down first, and more than one 

 application given. 



