The county of Clay is bounded as follows: Commencing at the northwest corner of Riley county; thence west along the south boundary of Washington county, to the sixth principal meridian; thence south with the sixth principal meridian, to the second standard parallel; thence east with said second standard parallel, to the southeast corner of section thirty-four, township ten south, of range four east; thence north with the west boundary of Riley county, to the place of beginning.