The Shulbasutras of Baudhayana, Apastamba, Katyayana and Manava: With Text, English Translation and Commentary c8.t23.9

c8.t23.9

**10.4-10.6.** In describing the arrangement of bricks in the second layer in these *sūtras*, care is taken that the edges of bricks in the two layers do not meet. This is achieved by placing 10 *B*₂ bricks turned towards north or south along the southern and the northern side of the body and interchanging the arrangement of bricks between the tail and the wing. Thus *B*₂ bricks placed at the juncture between the wing and the body in the first layer are now placed at that between the tail and the body, with 1 *aratni* or 24 *aṅgulas* lying within the tail and 12 *aṅgulas* within the body. (*tāsāmardheṣṭakāmātrāṇyātmani bhavanti/pucche'ratnimātrāṇi/Sundararāja.*). Since 12 *aṅgulas* of these bricks project into the body, these are covered, according to the commentators, by 5 *B*₂s to enable the filling up of the remaining space with *B*₁s. In the first layer, 5 *B*₂s lined each side of the tail. This arrangement is to be followed in the case of the wings for the second layer with the modification that on each side of the wing the number of *B*₂s should now be 6 because of the extension of the wing by one *aratni*. The different types of bricks arranged in the above manner total 163, as mentioned by Karavinda and in Fig. 10 and Table 2.