1. A chart of magnetic curves of equal variation / by Peter Barlow. Creator: Adam and Charles Black (Firm)Aikman, George, engraverBarlow, Peter, 1776-1862 Published / Created: 1854] Call Number: 11 1854 Container / Volume: BRBL_00009 Image Count: 1 Resource Type: Maps, Atlases & Globes Found in: Beinecke Rare Book and Manuscript Library > A chart of magnetic curves of equal variation / by Peter Barlow.