. . "Weights and measures Early works to 1800." . . . . "Observations on weights and measures" . "Observations on weights and measures"@en . . . . . . . . . "Observations on the proposed plan for an universal standard of weights and measures : in a letter to Sir John Sinclair, Bart. ... By John Rotheram, M.D"@en . "Early works"@en . "Early works" . . "Observations on the proposed plan for an universal standard of weights and measures in a letter to Sir John Sinclair, Bart"@en . "Observations on the proposed plan for an universal standard of weights and measures in a letter to Sir John Sinclair, Bart" . "Observations on the proposed plan for an universal standard of weights and measures" . "Observations on the proposed plan for an universal standard of weights and measures in a letter to Sir John Sinclair, Bart. Member of Parliament. By John Rotheram, M.D" . "Observations on the proposed plan for an universal standard of weights and measures in a letter to Sir John Sinclair, Bart. Member of Parliament. By John Rotheram, M.D"@en . "Electronic books"@en . "Observations on the proposed plan for an universal standard of weights and measures in a letter to Sir John Sinclair, Bart. ... By John Rotheram, M.D"@en . . "Observations on the proposed plan for an universal standard of weights and measures : in a letter to Sir John Sinclair"@en . "Observations on the proposed plan for an universal standard of weights and measures in a letter to Sir John Sinclair, Bart. ... By John Rotheram, M.D" . . . . . . . . .