Transcriber's Notes: Clear punctuation errors such as missing periods at the ends of sentences have been silently corrected. Hyphenation has not been standardized, for instance, Elizabeth-town, watch-maker, and over-all. The spelling of proper names has not been standardized, for instance, Blakslee and Blakeslee, Appalachicola and Apalachicola.

Figure 7 caption - "make" replaced with "made"

Page 38 - "Eliptical" replaced with "Elliptical"

Page 38 - "Guaging" replaced with "Gauging"

Page 98 - "Samue" replaced with "Samuel"

Page 146 - "worth" replaced with "worthy"

Page 146 - "Federick" replaced with "Frederick"

Page 162 - "Philadephia" replaced with "Philadelphia"

Page 162 - "Ephermeris" replaced with "Ephemeris"