The specification.
Section 14
SEC. 14. The specification.—The specification shall include: (a) The title of the invention; (b) A brief statement of its nature and purpose; (c) A brief explanation of the drawings, where there are drawings. (d) A complete and detailed description of the invention in such full, clear, concise and exact terms as to enable any person skilled in the heart of science to which the invention relates to make and practice the invention; and (e) A distinct and explicit claims or claims of the subject matter which the applicant claims new and seek to have patented.