Although in recent years forestry has taken great forward strides, and although many acres of forest land have been set aside as National Forests upon which further depletion of our timber supplies are automatically discontinued, the fact still remains that our timber is being cut faster than it is growing.
Johnson, Floyd A.
"The Forest Taxation Problem in the United States,"
Ames Forester: Vol. 27
, Article 9.
Available at: https://lib.dr.iastate.edu/amesforester/vol27/iss1/9