William Martin. Natural Philosopher, Northumberland Anti Newtonian

Engraving, portrait, William Martin, by Collard after Henry Perlee Parker, 1815-1825; "...Inventor of Metallic Railways on Stone Blocks 1796, Taking the Corf to the screen without Horses, & Fan Ventulation [sic] 1805." - Portrait, HL seated to L at table, looking front; b.l. and b.r., images of "Mr Martin's Original Safety Lamp, 1816 [and] Accommodated Safety Lamp, 1819"