The Shulbasutras of Baudhayana, Apastamba, Katyayana and Manava: With Text, English Translation and Commentary c8.t12.22

c8.t12.22

**15.4-15.6.** *Placement of bricks in the second layer.* As per directions in the rules, 2 B₄s (*śūlapādyā*) are to be placed one each at the apices G and H and 2 B₃s (*dīrghapādyā*), one each at B and C (Fig. 58). The remaining space can be divided into 17 horizontal (south-north) and 17 vertical (west-cast) rows. In the middle (*svayamātṛṇṇa*) of the fire-altar, 2 B₃s and 2 B₄s are placed as shown. It is easy to see that the remaining space can be filled by 32 B₂s at the sides and 144 B₁s with the longer side turned east or west. This accounts for 184 bricks. The number is completed by replacing 16 B₁s, four each of the four directions, by 32 B₂s. The total number of bricks of different types are : B₁ — 128 ; B₂ — 64 ; B₃ — 4 ; B₄ — 4.