On the Cover
January-February 2000 Volume 88, Number 1
In recent years the production of poultry, eggs and pork has
increasingly been conducted on an industrial scale, as illustrated by a
four-deck laying house in Pennsylvania. ...
Industrial fishing over the past half-century has noticeably depleted the topmost links in aquatic food chains
This widely applied technique has made major strides since its introduction a half-century ago at the University of Chicago
Eighteenth-century Bologna provided a rare liberal environment in which brilliant women could flourish
Animal-waste lagoons and sprayfields near aquatic environments may significantly degrade water quality and endanger health
A serendipitous collection of scientific, especially metallurgical, principles created melodic instruments from sawed-off steel barrels
The heliosphere appears to protect the inner solar system from the vagaries of the interstellar medium
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A review of Time, Trees, and Prehistory: Tree-Ring Dating and the Development of North American Archaeology, 1914–1950, by Stephen Edward Nash.
See all book reviews for this issue.