DKAINING NOTES 



217 



DEPTH OF DRAINS. 



Stiff clay 2 feet 6 inches deep. 15 feet apart. 



Friable clay 2 18 



Soft clay 2 9 21 



Loam, with clay 3 21 



gravel 3 , 27 



Light loam 3 3 , 33 



Sandy 3 6 , 40 



Light sand 3 9 , 45 



Gravelly sand 4 , 50 



NUMBER OF 12-INCH PIPES REQUIRED PER ACRE AT 

 DIFFERENT DISTANCES BETWEEN DRAINS. 



12 feet apart = 3630 pipes. 



15 = 2904 



18 = 2420 



21 = 2073 



27 = 1613 



33 = 1320 



40 , = 1089 



50 , = 871 



60 = 726 



PLANTATION TABLES AND NOTES. 



PLANTING IN SQUARES. 



To find number of trees required to plant an acre: 

 Divide the square feet in an acre (43,560) by the square 

 of the distance apart of the plants in feet for instance 



trees. 



Quincunx= double the number. 



