• Smithsonian Guides to Natural America.  1995. Smithsonian Institution, Washington DC.  Contributing author and editorial consultant to volume on natural areas in Northeastern United States.
  • "A Place for Strange Gods" in The Vermont Experience.  1987. Vermont Life Books, Montpelier, Vermont. Essay on bogs.
  •  "Lake Champlain's Island Treasures." (with Marc DesMeules). Vermont Life Magazine, Spring 1985. Article on the natural and human histories of significant islands in Lake Champlain.
  •  "Vermont's New Critters." Vermont Life Magazine, Spring 1983. Article on animals recently appearing or reappearing in Vermont.
  •  "Carver of Vermont Birds." Vermont Life Magazine, Spring 1981. Article on Robert Spear, well‑known naturalist and wood carver.
  • "New Fables for Conservation." Vermont Woodlands Magazine, Spring 1995. Article on allegories to conservation issues of the day.
  • "The Green Mountains" in Encyclopedia of New England Culture. 1996. Yale University Press, New Haven, Connecticut. Essay on the natural and land use histories of the Green Mountains.Introduction to Guide Book of the Long Trail. 1996.  The Green Mountain Club, Waterbury Center, Vermont. Natural and human histories associated with the Long Trail, particularly the Green Mountains.
  • "What is the World Coming to? Repercussions of the greenhouse effect." Sunday Rutland Herald and Times ArgusDec. 11, 1988. Commentary.
  • "Loss or Metamorphosis? Views of a changing World: Planning for Butterflies, Accepting Caterpillars." Sunday Rutland Herald and Times Argus, April 25, 1991. Commentary.
  • "Growing Pains: Rapid changes are threatening the way of life in Vermont." Sunday Rutland Herald and Times Argus, Aug. 9,1989. Commentary.
  • "What is a Mountain for? Worship or work? Is wind power the answer? No.Sunday Rutland Herald and Times Argus, November 20, 2005. Commentary.
  • "Water Bears: Cute little survivors are everywhere." Sunday Rutland Herald and Times Argus, December 27, 2009. Article on tardigrades.
  • "Hunt with Caution when Stalking Wild Mushrooms." Sunday Rutland Herald and Times Argus, August 23, 2009. Article on edible mushrooms.
  • " For Uncommon Beauty, Nothing Beats the Orchid." Sunday Rutland Herald and Times Argus, June 14, 2009. Article on wild orchids in Vermont. 
  • "How 'Biological Clocks' Guide Plants and Animals." Sunday Rutland Herald and Times Argus, May 10, 2009. Article on biological clocks. 
  • Wrote government publications, including The Northern Forest Lands: A Strategy for Their Future (report of the Governors' Task Force on Northern Forest Lands), The Health of Vermont's Forests: 1990 and Beyond (report of the Governor's Task Force on Forest Health), Vermont Forest Quarterly magazine, Vermont Fragile Areas Registry (significant natural areas in Vermont), and Manual for Park Naturalists (Vermont Department of Forests, Parks and Recreation).