This document consists of the six issues of the "Wilderness Medicine Newsletter" published during 1998. The newsletter provides medical and rescue information for the non-physician in remote wilderness areas. Issues typically include feature articles, conference and training courses schedules, and personal narratives. Feature articles in this volume cover avalanche awareness; advanced life support in the backcountry; a hypothermia treatment device for search and rescue teams called the charcoal vest; an overview of tick-borne diseases; an overview of insect repellents; a case discussion from a newsletter about mountain medicine; a review of heat illnesses; hyperventilation; using Global Positioning System units; keeping Wilderness First Responder certification current; an overview of trench foot; gender specific emergencies; and environmental problems and acute trauma associated with backcountry skiing. (TD)