He states that he considers the kunkur to be deposited by calcareous waters, abounding in infusorial animalculae; that the waters of the annual inundation are rich in lime, and that all the facts that have come under his observation appear to him to indicate that this is the source of the kunkur deposit, which is seen in a different form in the Italian travertine, and the crescent nodules of the Isle of Sheppey and of Bologne.
Doctor O'Shaughnessy further states, that the _reha_ earth, which I sent to him from Oude, is identical with the _sujjee muttee_ of Bengal, and contains carbonate of soda and sulphate of soda as its essential characteristic ingredients, with silicious clay and oxide of iron.

But in Oude, the term "_sujjee_" is given to the carbonate and sulphate of soda which remains after the silex has been removed from the reha.

The reha is fused into glass after the carbonic acid and moisture have been expelled by heat, and the sujjee is formed into soap, by the addition of lime, fat, and linseed oil, in the following proportions, I am told:--6 sujjee, 4 lime, 21/2 fat, and 11/2 ulsee oil.
The sujjee is formed from the reha by filtration.

A tank is formed on a terrace of cement.

In a hole at one corner is a small tube.