Spatial and Temporal Patterns of Bioindicator Mercury in Pennsylvania Oak Forest von McClenahen, James R., Hutnik, Russell J., Davis, Donald D.

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Mercury Accumulation in Pinus nigra (Austrian Pine) von Hutnik, Russell J, McClenahen, James R, Long, Robert P, Davis, Donald D

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Macrolichens as Biomonitors of Air-quality Change in Western Pennsylvania von McClenahen, James R, Davis, Donald D, Hutnik, Russell J

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Use of the Moss Dicranum montanum to Evaluate Recent Temporal Trends of Mercury Accumulation in Oak Forests of Pennsylvania von Davis, Donald D, McClenahen, James R, Hutnik, Russell J

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Geographic distribution of airborne fluorides near a point source in southeast Ohio / James R. McClenahen and T. Craig Weidensaul : no.1093(1977) von McClenahen, James R

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Tree Growth Responses of Populus deltoides and Juglans nigra to Streamflow and Climate in a Bottomland Hardwood Forest in Central Ohio von Dudek, Doreen M, McClenahen, James R, Mitsch, William J

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SELECTION OF A BIOMONITOR TO EVALUATE MERCURY LEVELS IN FORESTS OF PENNSYLVANIA von Davis, Donald D, McClenahen, James R, Hutnik, Russell J

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USE OF AN EPIPHYTIC MOSS TO BIOMONITOR POLLUTANT LEVELS IN SOUTHWESTERN PENNSYLVANIA von Davis, Donald D, McClenahen, James R, Hutnik, Russell J

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Mercury Accumulation inPinus nigra(Austrian Pine) von Hutnik, Russell J., McClenahen, James R., Long, Robert P., Davis, Donald D.

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Elemental concentrations in tree rings by PIXE: statistical variability, mobility, and effects of altered soil chemistry von McClenahen, James R, Vimmerstedt, John P, Scherzer, Amy J

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Influence of Cryphonectria parasitica basal cankers on radial growth of scarlet oak in Pennsylvania von Davis, D.D. (Pennsylvania State University, University Park, PA.), Torsello, M.L, McClenahen, J.R

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assessment of pitch pine (Pinus rigida) health and mortality in southern Ohio von McClenahen, J.R, McCarthy, N.H

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Community changes in a deciduous forest exposed to air pollution von McClenahen, James R

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Selection of a Biomonitor to Evaluate Mercury Levels in Forests of Pennsylvania von Davis, Donald D., McClenahen, James R., Hutnik, Russell J.

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Use of an Epiphytic Moss to Biomonitor Pollutant Levels in Southwestern Pennsylvania von Davis, Donald D., McClenahen, James R., Hutnik, Russell J.

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Temporal changes in height and diameter growth for two Nothofagus species in New Zealand von Runkle, James R., Stewart, Glenn H., McClenahen, James R.

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Height growth of northern red oak in relation to site and atmospheric deposition in Pennsylvania von McClenahen, James R., Long, Robert P.

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Evaluation of Vegetation Near Coal-burning Power Plants in Southwestern Pennsylvania. II. Ozone Injury on Foliage of Hybrid Poplar von Davis, Donald D., Hutnik, Russell J., McClenahen, James R.

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TOTAL SOIL FLUORIDE DETERMINATION BY A SINGLE DISTILLATION SELECTIVE ION ELECTRODE PROCEDURE von McCLENAHEN, JAMES R., SCHULZ, ERIC R.

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