Les Girls""-as the sophisticated theatrically aware traveler may know- are the dancing chorus of the Folies Bergere, -English (generally accepted as better dancers than the French), half of them blondes, half of them red heads, all of them presumably good looking. It was a minor miracle when Constance Tomlinson, from a Nova Scotian parsonage, via a second rate road show in England, snared a job -- and made good. This is the story of, her adventures, of the girls who made up the chorus, of the men who made plays for them- and rarely won more than the chance to give them an extra meal here and there -- the hand to mouth existence, on slim pay. Then- next step up in her double goal- to dance and to see the world -- Tommy, as she was called, promoted herself to the cast of the Basil Beauties, on tour in the capitals of Europe. One gets oblique glimpses of the places they went, the flavor of successive countries, the haps and mishaps that dogged their paths. It's fun reading, and the telling is lively, warm, and appreciative, without literary pretensions. Those hunting shockers will find it tame. I liked it.