208 



CRETACEOUS R0CK8 OF 8; INDIA. 



[Part III 



removed. In South Arcot lime prepared in this way is sold (1861) at 

 the rate of 2 annas {Sd.) a basket full, an amount which I estimated 

 at about 15 lbs. 



In Trichinopoly and Tanjore a larger kiln is used, two forms of which 

 are represented in the annexed figures. A layer of bricks laid at the 

 bottom, leaving interspaces communicating with the air holes, replace the 

 bars of the smaller kilns of South Arcot, In the large rectangular kiln 

 represented, the kunkur was laid in layers, alternating with large billets 

 Fig. 23. Native Lime-kilxs in Tanjoke and TEicuiNoroLY. 



<■-- 6 ft Gxns- 



of wood. In other respects the process was as in the former case, and 



when finished, the kiln was broken down for the extraction of the lime- 



The mortar prepared from kunkur is very hard and lasting. In the 



Durability of kunkur ^^^ <^^ ^^^® Vellaur river at Shoundrasholaspuram 



I noticed some large masses of brick-work, the 



remains apparently of an old dam, in which the mortar had been worn 



by the united solvent and frictional action of the water, much less than 



the imbedded bricks by the latter action alone. Mortar appears, however 



to be used sparingly in all stone edifices. In some of the large pagodas 



