An Essay on the Geology of Cumberland and Westmoreland. By H. A. Nicholson, D.Sc., M.B., F.G.S., &c. 8vo. London, 1868

1868 Annals and Magazine of Natural History  
doi:10.1080/00222936808695854 fatcat:llyammlhrjf3tii7b63q7ykzfe