Cobwebs in Grass, Great Spruce Head Island, Maine, July 26, 1971

Bunchberry Leaves and Crowberry, Great Spruce Head Island, Maine, August 20, 1954

Gray Moss and Red Pumice, Hnappadalur, Snaefellsnes, Iceland, July 11, 1972

Waterfall near Landmannahallir, Iceland, June 28, 1972

Mossy Turf and Gray Rocks Behind Skogar, Iceland, July 6, 1972

Green Moss on Steam Vent, Landmannalaugar, Iceland, June 29, 1972

Heather on Lava, Hitardalur, Eastern Snaefellsnes, Iceland, July 10 ,1972

Lava and Red Pumice, Hnappadalur, Snaefellsnes, Iceland, July 11, 1972

Stream Advancing on Ash, Mývatn, Iceland, July 23, 1972

Orange Lichen, Dimmuborgir, Myvatn, Iceland, July 26, 1972

Green Sea Cliff, Berufjordhur, on Road to Hofn, Iceland, July 30, 1972

Mud Pot, Myvatn, Iceland, July 23, 1972

Birch Woods, Vaglaskogur, East to Akureyi, Iceland, July 25, 1972

Ice in Glacial Lake, Fjnllsarlon, South Coast, Iceland, August 1, 1972

Sandbars in river from Flaajakull, South Coast, Iceland, 5 August 1972

Stones on Beach, Hellnar, Snaefellsnes, Iceland, July 14, 1972

River Canyon Junction, Oxnadalsheidi, West of Akureyri, Iceland, July 19, 1972

Mountain Tarn, Fjardharheidhi, Road to Seydharfjordhur, Iceland, July 29, 1972

Bluets, Red River Gorge, Kentucky, April 17, 1968

Lichen on Gray Rock, Great Spruce Head Island, Maine, July 1954