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