Joseph Priestley: Experiments and Observations on Different Kinds of Air is available in a second edition of 10 copies. This miniature edition is based on the second edition published Lucan in London in 1775. It consists of 340 pages plus two large foldout illustrations of the scientific equipment that Priestley used. A frontispiece shows a color reproduction of a contemporary portrait of Priestly, and the endpapers carry a modern photograph of Priestley's original laboratory.
The second Plum Park Press miniature edition of Preistley's EXPERIMENTS AND OBSERVATIONS... consists of 10 copies. The price is $55, plus $5 for shipping and handling.
Note: If you like science books, a copy of the book by Priestley goes very nicely with Huygens' Treatise on Light, also available from Plum Park Press: