The following fragments of a great work on the Interpretation of Nature were first published in Stephens's Letters and Remains [1734] They consist partly of detached passages, and partly of an epitome of twelve chapters of the first book of the proposed work. The detached passages contain the first, sixth, and eighth chapters, and portions of the fourth, fifth, seventh, ninth, tenth, eleventh, and sixteenth. The epitome contains an account of the contents of all the chapters from the twelfth to the twenty-sixth inclusive, omitting the twentieth, twentythird, and twenty-fourth. Thus the sixteenth chapter is mentioned both in the