"In New England the struggle for existence is visibly the struggle of plant with plant, each battling his neighbor for…"

"Outside a million windows, a million birds had sung as morning swept around the globe. Few men and few women were so …"

"We shall never understand the natural environment until we see it not as just so much air, water, and real estate, bu…"

"It is almost a marvel that trees should live to become the oldest of living things. Fastened in one place, their stru…"

"As soon as the 's is completed, it begins to accumulate trash and mud. In a little while, usually, it is covered with…"

"Most insects have enemies to bite them. The spreads death among injurious grubs. Efforts to control forest-enemies wi…"

"Mills gave occasional talks which led to a career as a speaker. His reputation and influence as a writer provided him…"

"A real is never contented with maps of places and pictures of things, but always desires to see the places and things…"