AND NOW—SOME AIR-CONDITIONED COACHES, Yosemite National Park.

GRIM-LOOKING MOTORISTS, 1900, Yosemite National Park. The do-or-die expression of these early motorists indicates the greatness of the adventure upon which they are embarked. When the first motorists came to Yosemite, their automobiles were chained to logs in the valley to avoid calamity. Now most of that park's million visitors a year come by car and bus.