Your initial reaction to Bill Bryson's reading of A Walk in the Woods may well be "Egads! What a bore!" But by sentence three or four, his clearly articulated, slightly adenoidal, British/American-accented speech pattern begins to grow on you and becomes quite engaging. You immediately get a hint of the humor that lies ahead, such as one of the innumerable reasons he longed to walk as many of the 2,100 miles of the Appalachian Trail as he could. "It would get me fit after years of waddlesome sloth" is delivered with glorious deadpan flair. By the time our storyteller recounts his trip to the Dartmouth Co-op, suffering serious sticker shock over equipment prices, you'll be hooked. When Bryson speaks for the many Americans he encounters along the way--in various shops, restaurants, airports, and along the trail--he launches into his American accent, which is whiny and full of hard r's. And his southern intonations are a hoot. He's even got a special voice used exclusively when speaking for his somewhat surprising trail partner, Katz. In the 25 years since their school days together, Katz has put on quite a bit of weight. In fact, "he brought to mind Orson Welles after a very bad night. He was limping a little and breathing harder than one ought to after a walk of 20 yards." Katz often speaks in monosyllables, and Bryson brings his limited vocabulary humorously to life. One of Katz's more memorable utterings is "flung," as in flung most of his provisions over t