Treasury of Scriptural Knowledge, by R.A. Torrey, [ca. 1880]
Overview
Exo 8:1, Frogs are sent; Exo 8:8, Pharaoh sues to Moses, who by prayer removes them away; Exo 8:16, The dust is turned into lice, which the magicians could not do; Exo 8:20, The plague of flies; Exo 8:25, Pharaoh inclines to let the people go, but yet is hardened.