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Description archivistique
Two papers on gradients
R./6.14/32 · Pièce · [19th cent.]
Fait partie de Manuscripts in Wren Class R

Draft, "On the Valuation of the mechanical effect of Gradients on a line of Rail Road" by Peter Barlow and a report, "Experiments made with the Salamander in the lesser inclined Plane" by an unidentified author, May 1836.