The Japanese scholar Miura Baien (1723-1789) worked throughout his life to produce a philosophical analysis of the natural world. Misinterpretations of his intentions arise from drawing diagrams on his behalf that are inconsistent with his text, or by applying to his text Western academic terms that are quite foreign to his thought. When Baien's text is examined in his own terms we can understand its significant role in the scientific thought of the Edo period.