DESAGULIERS, JOHN THEOPHILUS. A Course of Experimental Philosophy. London: Senex, 1734-44. 78 engraved folding plates. 2 vols., 4/so, contemporary calf, spines gilt, joints cracked, some wear to spine ends and corners -- FERGUSON, JAMES. Astronomy explained upon Isaac Newton's Principles, and made easy to those who have not studied Mathematics. London: printed for and sold by the Author, 1757. Engraved folding frontispiece and 13 engraved folding plates. 4/so, contemporary calf, joints cracked, some wear to spine ends and edges. Second edition. (3)