内容简介：
Fo' de land sakes, Massa Dick, wot am dat contraption yo' boys dun put togedder back ob de bahn yesterday? "Why, Aleck, don't you know what that is?" returned Dick Rover, with a smile at the colored man. "That's a biplane." "A biplane, eh?" repeated Alexander Pop, the colored helper around the Rover homestead. He scratched his woolly head thoughtfully. "Yo' don't mean to say it am lak a plane a carpenter man uses, does yo', Massa Dick? 'Pears lak to me it was moah lak some ship sails layin' down, -somethin' lak dem ships we see over in Africy, when we went into dem jungles to find yo' fadder."