62 TREATISE ON 



by three or four inches wide and four to five lignes [see translator's note, p. 0053] thick. 

 Assume that the lattice spaces in the trellis are nine by eight inches, & that the laths are 

 fourteen lignes wide. 1°. A very conspicuous mark is made at a point nine inches along 

 one edge of the board. Then, subtracting a length of fourteen lignes from this length of 

 nine inches, or alternatively, starting at the beginning of the board and measuring seven 

 inches ten lignes back up toward the mark, another very conspicuous mark, or even an 

 indentation, is made. These two marks determine the long side of the lattice spaces or 

 rectangles in the trellis: one of the marks includes the width of the lath; the other excludes 

 it. 2°. Along the other edge of the board, two conspicuous marks are made at eight inches 

 & at six inches ten lignes that determine the short side of the lattice space or the distance 

 from one vertical lath to the next. 



When the series of laths have been positioned on the hooks supporting them, the 

 first vertical lath is put on & attached to them. Then, setting the end of the board against 

 the inside edge of this lath, the next one is placed so that its edges line up with the two 

 marks on the side of the board indicating the shorter intervals, i.e. six inches ten lignes & 

 eight inches, or at least so that its outer edge is on the eight inch mark. The other vertical 

 laths are positioned the same way. At every stage a plumb line is dropped to make sure 

 that they're vertical, in case they'd been dislodged. As one goes along, the horizontal 

 laths are passed between the uprights & the wall. They're connected and positioned at the 

 appropriate distances using the side of the board marked with the longer distances, & the 

 lattice squares are tied up with iron wire as described above. 



A trellis also can be constructed in other locations, against the wall of a building 

 or elsewhere, in sections two or three toises [see translator's note, p.0085] long. It's 

 readily understood that the hooks on which 



