Ecology

The Worst Journey in the World

John Muir's Incredible Travel Memoirs: A Thousand-Mile Walk to the Gulf, My First Summer in the Sierra, The Mountains of California, Travels in Alaska, Steep Trails… (Illustrated)

A Thousand-Mile Walk to the Gulf (With Original Drawings & Photographs)

Carlsbad Caverns National Park, New Mexico

The Murray River

The English Lakes

Views of Nature – Contemplations on the Sublime Phenomena of Creation with Scientific Illustrations

Bartram's Travels

Flowers of Mountain and Plain

The Andes and the Amazon; Or, Across the Continent of South America

Natural History in Anecdote Illustrating the nature, habits, manners and customs of animals, birds, fishes, reptiles, etc., etc., etc

The English Lakes

Adventures of Bob White

The Treasure of the Humble

Shaggycoat

Zion National Park, Bryce Canyon, Cedar Breaks, Kaibab Forest, North Rim of Grand Canyon

Pere Marquette State Park

Forest Trees of Illinois

Everglades Wildguide

Hertfordshire