Containing the Places of 1500 Stars, from the First to the Fifth Magnitude Inclusive, Upwards of 200 of which are Noted as Double, Multiple, Or Variable; a List of Star-names; a Table for Determining the Position of the Constellations on the Celestial Concave at All Hours and Seasons, and Other Useful Tables. With an Examination of the Properties of the Projections Used in Mapping; and Hints on the Selection, Use, and Construction of Star-maps