> > > "...that of the workers two lines and three fifths. These, says
Reaumer, are the invariable dimensions of all the cells, that  ever were, or
ever will be made." ... An inch is twelve lines, for those who would like to
do the math.   We all know, though, that cells would have an AVERAGE width,
with some standard deviation about that average. < < <

I went to http://www.convertit.com/  and asked what 2.6 lines is in metres.

I got:

Conversion Result: 2.6 line = 5.50333333333333E-03 meter

Therefore, "the invariable dimensions of all the cells, that  ever were, or
ever will be made" is 5.5 mm.

I guess that settles it.

Except for the deviation.

allen