Although Harford County Public Library buildings remain closed to the public, Drive-Thru and Front Door, Grab N' Go pickup services are available Monday through Friday, 10 A.M. to 6 P.M. Click here for more information.

All locations of the Harford County Public Library will be closed Friday, July 3 for pickup appointments in observation of the 4th of July Holiday.
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Premium eResources

OneFile: Science

With OneFile: Science, researchers can remain current with the latest scientific developments in particle physics, advanced mathematics, nanotechnology, geology, and hundreds of other areas. More than 350 full-text, non-embargoed journals are covered; updated daily, this collection includes more than 1.6 million articles to satisfy almost every scientific inquiry. Key subjects covered include the biological sciences, computing, engineering, and technology.

Recommended Websites


Links and lots of information about biology, bio-diversity, plant biology, evolution, microbiology, and much more.

How Stuff Works

“Originally founded as a Web site for curious people, the award-winning company now offers clear and fascinating content.” Categories include computers, science, money, people, and lots more. This site is good for browsing but also has a strong index.

Plants Database

All about plants; this site is maintained by the U.S. Dept. of Agriculture, National Resources Conservation Service.

Physics Journals

American Physical Society (APS) Journals

Access provided through a partnership between the APS Public Access Program and Harford County Public Library. You must be in the library to access these journals.

APS Journal Homepage
Physical Review Letters (Brief important papers, all topics in physics)
Physical Review A (atomic, molecular, and optical physics)
Physical Review B (condensed matter and materials physics)
Physical Review C (nuclear physics)
Physical Review D (particles, fields, gravitation and cosmology)
Physical Review E (statistical, nonlinear, and soft matter physics)
Physical Review X (all topics of physics)
Physical Review Applied Physics: (applied physics)
Reviews of Modern Physics: (in-depth articles, al topics in physics)
Physical Review Special Topics-Accelerators and Beams
Physical Review Special Topics-Physics Education Research
The APS Journal Archive (back to 1983)
Physics (highlighting significant papers from APS Journals)
Physics Central (educational/informational site for students and the public)