[Figs. a to n], illustrating Addenda & Corrigenda.
P. [64]. A nib may be sharpened several times, before it is re-cut, by paring it underneath (fig. [a]).
Pp. [73] & [81]. The thin finishing-strokes of j, & F, G, J, N, are made with the point of the nib—see note p. 63 above.
P. [99]. The plan of a paper scale is shewn in fig. [b].
P. [109]. The dots for lines were often pricked through the edges of the book-sheets which were cut off after ruling (fig. [c]).
P. [118]. The spread or wedge-shaped thin stroke, sometimes very strongly marked, is common in early forms (fig. [d]).
P. [144].
&