92156. White, J. W.   Nitrification in Relation to the Reaction of the Soil.   The Pennsylvania State College, Agricultural Experiment Station, Harrisburg, Pennsylvania, 1916, Annual Report, Separate No. 7 : pages 70-84.   Softbound, usual signs of age, very good condition.    $5.00

116793. Wood, M.   Birds of the State College Region, Pennsylvania.   The Pennsylvania State College, School of Agriculture, 1952, Bulletin, Number 558 : 36 pages.   Softbound, previous owners stamp, very good condition.   Original publication, not a modern reprint.   $7.00

20739. Wyllie, P. J.   Applications of High Pressure Studies to the Earth Sciences.   Pennsylvania State University, 1962, , 89 pages and 44 figures.   Off-print, minor signs of use and age discoloration, very good condition.   Mineral Industries Experiment Station Contribution No. 62-20.   $17.00

29784. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1965, Mineral Industries, 34 (8) : .   Usual signs of use and age, very good condition.    $3.00

29785. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1965, Mineral Industries, 34 (9) : .   Usual signs of use and age, very good condition.    $3.00

29792. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1965, Mineral Industries, 36 (3) : .   Usual signs of use and age, very good condition.    $3.00

29783. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1965, Mineral Industries, 34 (7) : .   Usual signs of use and age, very good condition.    $3.00

29790. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1965, Mineral Industries, 36 (1) : .   Usual signs of use and age, very good condition.    $3.00

29791. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1965, Mineral Industries, 36 (2) : .   Usual signs of use and age, very good condition.    $3.00

29787. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1966, Mineral Industries, 35 (7) : .   Usual signs of use and age, very good condition.    $3.00

29794. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1966, Mineral Industries, 36 (5) : .   Usual signs of use and age, very good condition.    $3.00

29793. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1966, Mineral Industries, 36 (4) : .   Usual signs of use and age, very good condition.    $3.00

29788. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1966, Mineral Industries, 35 (8) : .   Usual signs of use and age, very good condition.    $3.00

29797. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1966, Mineral Industries, 36 (8) : .   Usual signs of use and age, very good condition.    $3.00

29786. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1966, Mineral Industries, 35 (5) : .   Usual signs of use and age, very good condition.    $3.00

29789. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1966, Mineral Industries, 35 (9) : .   Usual signs of use and age, very good condition.    $3.00

29796. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1966, Mineral Industries, 36 (7) : .   Usual signs of use and age, very good condition.    $3.00

29798. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1966, Mineral Industries, 36 (9) : .   Usual signs of use and age, very good condition.    $3.00

29795. Mineral Industries.   Mineral Industries, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1966, Mineral Industries, 36 (6) : .   Usual signs of use and age, very good condition.    $3.00

29799. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1967, Earth and Mineral Sciences, 37 (1) : .   Usual signs of use and age, very good condition.    $3.00

29800. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1967, Earth and Mineral Sciences, 37 (2) : .   Usual signs of use and age, very good condition.    $3.00

29801. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1967, Earth and Mineral Sciences, 37 (3) : .   Usual signs of use and age, very good condition.    $3.00

29810. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1969, Earth and Mineral Sciences, 38 (8) : .   Usual signs of use and age, very good condition.    $3.00

29808. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1969, Earth and Mineral Sciences, 38 (6) : .   Usual signs of use and age, very good condition.    $3.00

29809. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1969, Earth and Mineral Sciences, 38 (7) : .   Usual signs of use and age, very good condition.    $3.00

29811. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1969, Earth and Mineral Sciences, 38 (9) : .   Usual signs of use and age, very good condition.    $3.00

29813. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1969, Earth and Mineral Sciences, 39 (2) : .   Usual signs of use and age, very good condition.    $3.00

29814. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1969, Earth and Mineral Sciences, 39 (3) : .   Usual signs of use and age, very good condition.    $3.00

29812. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1969, Earth and Mineral Sciences, 39 (1) : .   Usual signs of use and age, very good condition.    $3.00

29823. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1970, Earth and Mineral Sciences, 40 (3) : .   Usual signs of use and age, very good condition.    $3.00

29816. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1970, Earth and Mineral Sciences, 39 (5) : .   Usual signs of use and age, very good condition.    $3.00

29817. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1970, Earth and Mineral Sciences, 39 (6) : .   Usual signs of use and age, very good condition.    $3.00

29818. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1970, Earth and Mineral Sciences, 39 (7) : .   Usual signs of use and age, very good condition.    $3.00

29819. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1970, Earth and Mineral Sciences, 39 (8) : .   Usual signs of use and age, very good condition.    $3.00

29820. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1970, Earth and Mineral Sciences, 39 (9) : .   Usual signs of use and age, very good condition.    $3.00

29821. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1970, Earth and Mineral Sciences, 40 (1) : .   Usual signs of use and age, very good condition.    $3.00

29815. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1970, Earth and Mineral Sciences, 39 (4) : .   Usual signs of use and age, very good condition.    $3.00

29822. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1970, Earth and Mineral Sciences, 40 (2) : .   Usual signs of use and age, very good condition.    $3.00

29824. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1971, Earth and Mineral Sciences, 40 (4) : .   Usual signs of use and age, very good condition.    $3.00

29827. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1971, Earth and Mineral Sciences, 40 (7) : .   Usual signs of use and age, very good condition.    $3.00

29828. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1971, Earth and Mineral Sciences, 40 (8) : .   Usual signs of use and age, very good condition.    $3.00

29829. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1971, Earth and Mineral Sciences, 40 (9) : .   Usual signs of use and age, very good condition.    $3.00

29830. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1971, Earth and Mineral Sciences, 41 (1) : .   Usual signs of use and age, very good condition.    $3.00

29831. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1971, Earth and Mineral Sciences, 41 (2) : .   Usual signs of use and age, very good condition.    $3.00

29832. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1971, Earth and Mineral Sciences, 41 (3) : .   Usual signs of use and age, very good condition.    $3.00

29825. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1971, Earth and Mineral Sciences, 40 (5) : .   Usual signs of use and age, very good condition.    $3.00

29826. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1971, Earth and Mineral Sciences, 40 (6) : .   Usual signs of use and age, very good condition.    $3.00

29833. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1972, Earth and Mineral Sciences, 41 (4) : .   Usual signs of use and age, very good condition.    $3.00

29841. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1972, Earth and Mineral Sciences, 42 (3) : .   Usual signs of use and age, very good condition.    $3.00

29840. Earth and Mineral Sciences.   Earth and Mineral Sciences, The Pennsylvania State University, College of Earth & Mineral Sciences.   Pennsylvania State University, 1972, Earth and Mineral Sciences, 42 (2) : .   Usual signs of use and age, very good condition.    $3.00