1S75.] G. Thibaut — On the S'ulvasutras. 267 



triangle turned round, so that the base is uppermost — representing the broad 

 i. e„ upper part and the top the chin, chubuka) three marks at equal dis- 

 tances from each other (thus dividing it into four parts). Having divided 

 the two other sides of the triangle in the same way, we begin by drawing 

 a line from the first mark on the base to the first mark on the nearer of the 

 two other sides. Then a line is drawn joining the second mark on the 

 base with the second mark on the side, and a third line joining the third 

 mark on the base with the third mark on the side. After that, a line is drawn 

 joining the third mark on the base with the first mark on the third side of 

 the triangle. The same is done with the other marks. By this division 

 we get four triangular bricks standing on the base of the large triangle ; 

 over these we have three double-triangular bricks ; then two double-trian- 

 gles ; then one double triangle in the ' chin' of the large triangle. Alto- 

 gether six double triangles and four triangles. Thus we have ten bricks 

 in one of the large triangles. 



Twenty such (large triangles as described in the last sutra but one) 

 form the whole agni. 



One of these triangles is the half of an oblong, the area of which is 

 equal to the tenth part of the whole agni. 



The arrangement of these twenty large triangles, every one of which 

 is subdivided into ten praugas and ubhayatahpraiigas, may be seen in the 

 sketch of the first layer of the s'mas'anachiti, and I omit therefore the 

 detailed description given by the commentator. 



Baudhayana proceeds to the rules for the second layer. 



c 



For the second layer we divide one triangle lengthways (bisecting the 

 base by a perpendicalar from the top). 



Here again we depend on the commentary for explanation. 



sgfjpiHr *<TJTWT3ir€Tf>r q-nrrJTswiin-qrrrfa qw w% Tsreanfsr ^^ i 



■fcvrsTcr | 



In the whole agnikshetra (of the s'mas'anachiti) there are five triangles, 

 the height of which is equal to the measure of six parts (to six times the 

 side of the fifteenth part of the agnikshetra), and the base of which is equal 

 to one such part (the area of one such triangle is T 3 T of the agnikshetra, 

 therefore all five = the whole agnikshetra, 7 1 square punish as). (If we 

 divide the agni into these five triangles), the top of three among them is 



