In spite of what Milanesi says in his introduction, I strongly suspect this third treatise to be of a later date than the others; the whole tone of it seems to smack more of the _cinquecento_ than of the previous century. At the same time it is inferior to the two preceding treatises in practical knowledge—indeed it contains much nonsense. Footnote 165: See above, p. 174, for an account of L’Altare. Footnote 166: But much the same might be said of the potter’s art; in this case, however, the artistic history is far more continuous and inter-connected than in the case of glass. Footnote 167: It is not less interesting to hear, in a letter (dated 1572) from the governor of Poitou, of ‘_Fabian_ Salviate, _escuyer, gentilhomme de Myrane, païs de Venize, venuz lui et sa famille, en ce païs de Poictou pour praticquer l’art de la Verrerie_.’ Cf. p. 214. But this is perhaps an accidental coincidence. Footnote 168: This bed of sand extends eastward through the forest of Fontainebleau, and at the present day it is this sand of Fontainebleau that the glass-makers of Murano, when they can afford it, use in preference to all other sources of silica. Footnote 169: Truguet, _Les Cris de Paris_—no date, but soon after 1600. _Verre de pierre_ we may compare to our expression ‘flint’ or ‘pebble glass.’ It has been altered to _verre de bière_ by a recent French writer on glass, who quotes the cry! Footnote 170: It was a Ferro who, as far back as the fourteenth century, taught the glass-workers at L’Altare the Venetian methods of making glass. The glass industry of Provence has at the present day been almost monopolized by the French branch of this family. Footnote 171: In the west also, René, who we must remember was head of the house of Anjou, in consideration of the ‘_gentilesse et noblesse qui est l’ouvrage de verrerie, et que aussi c’est le bien du pays et de la chose publique_,’ granted permission for the foundation of glass-works among the forests of La Vendée, with rights of cutting wood ‘_au lieu le moins dommaigeable_’ (Gerspach, p. 196). Footnote 172: At this time—in the sixteenth and early seventeenth century—Lorraine was not yet an integral part of France. It formed part of the Holy Roman Empire, while its trade connections were rather with the Netherlands and with Italy. See below for the distinction between _Verres de France_ and _Verres de Lorraine_. Footnote 173: The Abbé Boutellier has made a special study of the Nivernais glass, but I have not had an opportunity of seeing his _Histoire des Gentilshommes verriers et de la Verrerie de Nevers_. Footnote 174: In distinction from the _Verre en tables quarrées_ made in Lorraine. I am unable to say whether the latter was at so early a date made by the cylinder process, but the square shape renders this very likely. Footnote 175: