Books by Harold S. Betts
Western hemlock
Western hemlock
Douglas-fir (Pseudotsuga taxif
Douglas-fir (Pseudotsuga taxifolia)
Baldcypress (Taxoodium distichum)
Douglas-fir (Pseudotsuga menziessi)
Sugar pine (Pinus lambertiana)
Maple (Acer species)
Oaks (Eastern) (Quercus species)
Alaska yellow cedar (Chamaecyparis nootkatensis)
American beech (Fagus grandifolia)
American holly (Ilex opaca)
Atlantic white-cedar (Chamaecyparis thyoides)
Balsam poplar (Populus tacamahacca)
Black willow (Salix nigra)
Buckeye (Aesculus species)
Butternut (Juglans cinerea)
California incense-cedar
California incense-cedar
Cottonwood
Eastern red cedar (Juniperus virginiana)
Flowering dogwood (Cornus florida)
Hackberry
Hickory
Noble fir (Abies procera)
Oaks (Quercus species)
Osage orange (Maclura pomifera)
Persimmon (Diospyros virginiana)
Port Orford white-cedar (Chamaecyparis lawsoniana)
Red pine
Tupelo (Nyssa spp.) / by H. S. Betts
Western hemlock (Tsuga heterophylla)
Western larch (Larix occidentalis)
Supplement to how lumber is graded
The strength of North American woods
Timber, its strength, seasoning, and grading
The seasoning of wood
Strength tests of structural timbers treated by commercial wood-preserving processes
Possibilities of western pines as a source of naval stores
Utilization of California eucalypts
Properties and uses of the southern pines