On Analyzing Lime, 307 



ascertain if this earth existed under the circumstances 

 we have already stated. 



The other specimen of limestone, which is far more 

 friable, and of a dark micaceous appearance, was solu- 

 ble with more facility in muriatic acid. The solution 

 was soon effected ; the addition of carbonate of ammonia 

 separated the lime in an abundant precipitate ; and the 

 filtered liquor, after adding the carbonate, gave a slight 

 precipitate with phosphate of soda. Magnesia, however, 

 as already stated is always found, more or less, accom- 

 panying lime. 



With much respect, Sir, 



I remain yours, &c. 



James Cutbush. 

 JohnLang. 



Course of Crops, 



Advantage is taken, of the vacant space in this sheet, by 

 the writer of the note, page 144, on General Armstrong's 

 letter relative to the Draveil plough and the tenant's course 

 of crops ^ page 145, to correct an error. The words ^'^ and his 

 course of crops ^'' should have been omitted. There cannot 

 be a worse course than wheats ryCy and oats^ immediately 

 succeeding each other. 



