[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [The Shulbasutras of Baudhayana, Apastamba, Katyayana and Manava: With Text, English Translation and Commentary](https://indike.org/pramana/ins.science.sen-bag-1983) › c8.t7 # The Shulbasutras of Baudhayana, Apastamba, Katyayana and Manava: With Text, English Translation and Commentary c8.t7: Chapter 9: Construction of a Rectilinear Śyenacit—Second Type The Śulbasūtras of Baudhāyana, Āpastamba, Kātyāyana and Mānava: With Text, English Translation and Commentary c8.t7 - **Language:** English ### Chapter 9: Construction of a Rectilinear Śyenacit—Second Type ### [c8.t7.2](https://indike.org/pramana/ins.science.sen-bag-1983.c8.t7.2) \*\*9.2.\*\* In this type of the fire-altar, square and rectangular bricks of the following types are used. B₁ — one-fifth (\*pañcamī\*) brick .. 24 × 24 sq. \*aṅgulas\*. B₂ — one-fifth with half (\*adhyardhā-pañcamī\*) brick 36 × 24 sq. \*aṅgulas\*. B₃ — half of one-fifth (\*ardhyā\*) .. 24 × 12 sq. \*aṅgulas\*. B₄ — quarter of one fifth (\*pādyā\*) .. 12 × 12 sq. \*aṅgulas\*. ### [c8.t7.3](https://indike.org/pramana/ins.science.sen-bag-1983.c8.t7.3) \*\*9.3-9.6.\*\* \*Placement of bricks in the first layer.\* The placement is very clearly explained in the \*sūtras\* themselves and is shown in Fig. 35. How B₃s are placed turned towards ### [c8.t7.5](https://indike.org/pramana/ins.science.sen-bag-1983.c8.t7.5) Fig. 35. Arrangement of bricks in the first layer. ### [c8.t7.6](https://indike.org/pramana/ins.science.sen-bag-1983.c8.t7.6) north (\*udīcīḥ\*) on the western and eastern side of the wings and at the end of the tail, and towards east (\*prācīm\*) at the two corners of the tail where it joins with the body, should be noticed. Regarding the number and types of bricks used in the different parts of the fire-altar, D. comments as follows: \*tatra pakṣayordvisaptatiḥ\* | \*aṣṭāviṃśatiḥ pucche\* | \*ātmani śatam\* | \*asminprastāre ṣaṣṭiḥ śataṃ pañcamyaḥ\* | \*aṣṭāvadhyardhāḥ\* | \*triṃśadardhyāḥ\* | \*dve pādeṣṭake\* | (Table 3.). ### [c8.t7.7](https://indike.org/pramana/ins.science.sen-bag-1983.c8.t7.7) TABLE 3. \*Bricks in the first layer ### [c8.t7.8](https://indike.org/pramana/ins.science.sen-bag-1983.c8.t7.8) | Parts of the \*citi\* | Brick type | | | | Total | | | B₁ | B₂ | B₃ | B₄ | | | Body | 100 | | | | 100 | | Wings | 48 | | 24 | | 72 | | Tail | 12 | 8 | 6 | 2 | 28 | | Total | 160 | 8 | 30 | 2 | 200 | ### [c8.t7.9](https://indike.org/pramana/ins.science.sen-bag-1983.c8.t7.9) \*\*9.7-9.10.\*\* \*Placement of bricks in the second layer.\* Here, after placing 1 B₄ at each of the four corners of the body, 2 B₃s are on either side of each B₄. With 5 B₃s in the middle ### [c8.t7.10](https://indike.org/pramana/ins.science.sen-bag-1983.c8.t7.10) Fig. 36. Arrangement of bricks in the second layer. ### [c8.t7.11](https://indike.org/pramana/ins.science.sen-bag-1983.c8.t7.11) of the eastern side, their total number on the eastern side is actually 9. The alternate arrangement of 3 B₂s and 2 B₃s at the end of the wing is shown in the Fig.36. The number and types of bricks used in covering the second layer are shown in Table 4 and agree with D's commentary : \*asminprastāre pañcaṣaṣṭiḥ śataṃ pañcamyaḥ\* | \*ṣaḍadhyardhāḥ\* | \*pañcaviṃśatirardhāḥ\* | \*catasraḥ pādyāḥ\* | ### [c8.t7.12](https://indike.org/pramana/ins.science.sen-bag-1983.c8.t7.12) TABLE 4 . \*Bricks in the second layer. ### [c8.t7.13](https://indike.org/pramana/ins.science.sen-bag-1983.c8.t7.13) | Parts of the \*citi\* | Brick type | | | | Total | | | B₁ | B₂ | B₃ | B₄ | | | Body, excluding junction layers | 81 | | 21 | 4 | 106 | | Wings, including junction layers | 54 | 6 | 4 | | 64 | | Tail, including junction layer | 30 | | | | 30 | | Total | 165 | 6 | 25 | 4 | 200 | --- Source: [https://indike.org/pramana/ins.science.sen-bag-1983.c8.t7](https://indike.org/pramana/ins.science.sen-bag-1983.c8.t7) · Pramāṇa