ARMS APPRECIATIONARTISTS FOLLOW THE TRAIL OF THE LONESOME SPINE

He submitted "Desert Citizens" in a competition while Terminal Four was still under construction; when the terminal opened two years ago, its artwork was praised for its imagination, and for its departure from the "Welcome to the Old West" clich‚s of other airport art. Terminal Three, for instance, greets incoming passengers with a careering stagecoach pulled by runaway horses. Winter visitors planning to play golf are a good deal more likely to see cactuses full of bullet holes. Klett's photography series, in fact, is a singularly appropriate greeting for disembarking airline passengers. After ingesting airline food, extricating carry-on bags from the overhead luggage compartments and walking several miles to the courtesy bus stand, most airline passengers feel just about as bedraggled as Mark Klett's cactuses look.