Ferns and flowering plants of westmoreland country, Pennsylvania by Pearth, Dorothy L.

Subjects:

Report for the years 1903 and 1904, together with some suggestions concerning the present needs and the futures policy of the department : and brief papers upon subjects connected...

Subjects: “…Forests and forestry-Pennsylvania…”

Report of the Pennslvania Department of Forestry for the years 1908-09

Subjects: “…Forests and forestry-Pennsylvania…”

Report on the Pennsylvania Department of Forestry, for the years 1905 and 1906, together with suggestions concerning the present needs and the future policy of the department, and papers subjects connected with Pennsylvania forestry.

Subjects: “…Forests and forestry-Pennsylvania…”

Soil survey : clarion country pennsylvania

Propagation of forest trees : having commsrcial value and adapted to Pennsylvania by Wirt, George H.

Report of the chief forest fire warden for the year 1917

Municipal Watershed Management Symposium Proceedings : held at Pennsylvania on 19th to 20th September, 1973.

Breeding pest-resistant trees : proceedings of a N.A.T.O. and N.S.F. Advanced Study Institute on genetic improvement for disease and insect resistance of forest trees held at The Pennsylvania State University, University Park, Pennsylvania on August 30th-11th September, 1964

Pruning simplified by Hill, Lewis

Field guide to edible wild plants by Angier, Bradford

Pesticide handbook

The origin and cultivation of shade and ornamental trees by Li, Hui-Lin

Systems ecology

Planning urban environment by Branch, Melville C.

Reviews of modern physics

Plant growth by Yocum, L. Edwin

Build your own greenhouse: how to construct, equip, and maintain it by Neal, Charles D.