UNITS OF MEASUREMENT 



89 



S3. Plan for Permanent Sample Plots in the Adirondacks. Journal of Forestry, Vol. XVI, 



No. 8, p. 922. S. N. Spring, et al. 

 84. A Simplified Method of Stem Analysis. T. W. Dwight, Journal of Forestry, Vol. XV, 



No. 7, November, 1917, p. 8G4. 

 8.5. Mechanical Aids in Stem Analysis. Ernest C. Pegg, Journal of Forestry, Vol. XVII, 



No. 6, October, 1919, p. 682. 

 86. Classifying Forest Sites by Height Growth. E. H. Frothingham, Journal of Forestry, 



Vol. XIX, No. 4, April, 1921, p. 374. 



UNITS OF MEASUREMENT 



Used in Land Surveying and Forest Mensuration 

 1 Mile 

 5280 feet 



80 chains (66 feet each) 

 320 rods (16^ feet each) 

 16 tallies (5 chains each) 

 1000 standard double paces (5. 28 feet) 

 2000 standard single paces (2 . 64 feet) 



1 Acre 

 43,560 square feet 

 10 square chains 

 160 square rods 



2 chain strip, 1 tally in length 



-1 Section 

 640 acres 

 16 "forties" (square forty acre tracts) 

 1 mile square 



DIMENSIONS OF FRACTIONAL ACRE TRACT 



Size of Fractional 

 Tract 



(Acres) 



Length of Radius 



if Circular 



(Feet) 



117.8 

 83.3 

 58.9 

 41.6 

 29.4 



