104. I have left the French lignes because it is not a number of lines of text but a vertical height across the lines of text, of 40 lignes length, that is to be measured! The French use of ligne to mean both a line (of text) and a unit of size invites confusion; since we also have here two different measuring standards for length - Fourier’s pouce and the standard pouce (de Roi) confusion is worse confounded. See note 104.