Unnumbered pageScan 99 of 165
On a course of wall of rectangular bricks of type A (see below) lying two and two side by side across the width of the wall, there follows another course with a different brick type B (see below) consisting of square slabs taking up the whole width of the wall and laid so that the centre of the square slab falls exactly over the crosspoints of the joints of the course below see fig 3. In this way a an exceptionally effective bonding is achieved through alternation between smaller courses of narrower double bricks and courses of square single bricks taking up the whole width of the wall.
The brick of type A was measured in a number of cases, and they all proved to have the dimensions: 22,5 cm x 16 Type A: 48 cm x 22,5 cm x 16 cm. A pair of bricks of type B could also be measured, and in both cases the figures obtained were: Type B: 46 cm x 46 cm x 14 cm. This can thus be established as the … continues
65 figures hard to readstruck struck outadded written in above” jug ditto, and what it repeatsword reading not certain