Columbia subject headings:
Harvard subject headings:
Alaska--Description and travel
California--Description and travel.
Muir, John, 1838-1914
Natural history--California
Naturalists--United States--Biography
Princeton subject headings:
Alaska--Description and travel.
California--Description and travel.
Muir, John, 1838-1914.
Natural history--California.
Naturalists--United States--Biography.