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Publications

These publications showcase the significant science conducted in our Science Centers.

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Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania: Hydrology of a small carbonate site near Ephrata, Pennsylvania, prior to implementation of nutrient management Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania: Hydrology of a small carbonate site near Ephrata, Pennsylvania, prior to implementation of nutrient management

The U.S. Geological Survey, in cooperation with the U.S. Department of Agriculture and Pennsylvania Department of Environmental Protection, investigated the effects of agricultural best-management practices on water quality in the Conestoga River headwaters watershed. This report describes environmental factors and the surface-water and ground-water quality of one 47.5-acre field site...
Authors
E. H. Koerkle, D. W. Hall, D. W. Risser, P. L. Lietman, D. C. Chichester

Fluorspar Fluorspar

Developments in the area of fluorspar in 1996 are reviewed. There was no reported mine production of fluorspar the U.S. in 1996, so domestic fluorspar requirements were satisfied by imports, sales from the National Defense Stockpile, and small amounts of synthetic fluorspar produced from industrial waste. The Defence Logistics Agency, consumption, imports, exports, markets, production of...
Authors
M. Miller

The name of Lawrence's flycatcher The name of Lawrence's flycatcher

If Lawrence's flycatcher of Grenada, Trinidad, and northern South America is placed in the genus Lathrotriccus with the species euleri, it should be L. flaviventris (Lawrence) or L. euleriflaviventris, depending on rank. If it remains in the genus Empidonax, the specific name should be bolivianus Allen.
Authors
R.C. Banks
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