284 



BOARD OF AGRICULTURE. [Pub. Doc. 



Jack Frost will laugh at the fool-mortals who trust to 

 "consolidated earth "only twelve to fifteen inches below 

 porous stone-work, through which water leaches to saturate 

 the clay. 



It may seem ungracious to make extracts from these too 

 eager and selfish teachers of the people. But, when caught 

 in the act by their own forward testimony, what other 

 remedy have we? This cut is from circular of Gates 

 Crusher, Chicago : — 



Here at the quarry and the crusher seems to be the source of 

 the organic porosity which destroys bogus " macadam." Here 



