Colorado

Emergency Medicine Secrets

By Vincent J. Markovchick, Peter T. Pons, Richard E. Wolfe (all from the Department of Emergency Medicine, Denver General Hospital, Denver, Colorado, USA)

Child Psychology: The Modern Science

By Ross Vasta, etc., Marshall Haith (University of Denver, Colorado, USA), Scott Miller (University of Florida

Run, Spot, Run: The Ethics of Keeping Pets

By Jessica Pierce (Center for Bioethics and Humanities, University of Colorado Denver, Anchutz Medical Campus in Denver, Colorado, USA)

Insects and Spiders

By David J. Lewis (Associate Professor of Entomology, McGill University, Montreal, Canada), Paula E Cushing (Curator of Entomology and Arachnology, Denver Museum of Natural History, Colorado, USA)

The Potential of U.S. Cropland to Sequester Carbon and Mitigate the Greenhouse Effect

By John M. Kimble (Retired, Addison, New York, USA), Ronald F. Follett (NRRC, Fort Collins, Colarado, C. Vernon Cole (Colorado State University, Ft. Collins, Colorado