240 



Note on the Distribution of Soils, Sj-c. 



Analysis of Biiat Soil from Perruna (specimen long 



gathered.) 



Water of absorption 







3-25 



Taken off by filterin 



g solution 



in distilled 





water 





... ... 



2-5 



Carb. Lime... 



. ■ . 



... ... 



25.3 



Magnesia 







2-0 



Alumina 





... ... 



7-0 



Iron 





... ... 



0-25 



Silex 



• • • 



... ... 



57-75 

 98-05 





Loss. 



... 



1-95 



100-0 



Soil adapted for growing Falginee indigo (i. e. sown in 

 March, and not irrigated) as in the Tirhoot factories, which 

 are generally on this kind of land, and confined to the cal- 

 careous region upon the great Gunduk. 



It may also be worth stating, that matter deposited in the 

 reservoir of an Indigo factory supplied with water from 

 the Gogra, when treated with dilute muriatic acid (2 water 

 and 1 acid) shewed a loss of 7*5 per cent. ; so that river 

 seems to bring down much more lime than the soil in its 

 neighbourhood, i. e. six or eight miles from it contains ; again, 

 matter deposited in a reservoir supplied from the little 

 Gunduk at Selempoor when similarly treated to the above, 

 shewed a loss of 27-5, and thus seems to carry with it mud 

 as rich in lime as the soil about Perowne. 



D. LlSTON. 



Note. — Mr. Liston's paper opens a wide field for researches of immediate in- 

 terest to geology, agriculture, and medicine, and the results to which he has been 

 led are already of deep importance to each of those branches of science — Ed. 



