102 



After setting out in detail numerous analyses made and the 

 results obtained, Prof. Hall comes to the following general con- 

 clusions : — 



1. The proportion of phosphoric acid and of potash in the ash 

 of any given plant varies with the amount of these substances 

 available in the soil, as measured by the response of the crops to 

 phosphatic or potassic manures respectively. 



2. The extent of the variation due to this cause is limited, and 

 is often no greater than the variations due to season, or than the 

 other variations induced by differences in the supply of non-essen- 

 tial ash constituents — soda, lime, &c. 



3. The fluctuations in the composition of the ash are reduced 

 to a minimum in the case of organs of plants, which, like the grain 

 of cereals, or the tubers of potatoes, are manufactured by the plant 

 from materials previously assimilated. 



4. The composition of the ash of the cereals is less affected by 

 changes in the composition of the soil than is that of root crops 

 like swedes and mangels. 



5. The composition of the ash of mangels grown without manure 

 on a particular soil gives a valuable indication of the require- 

 ments of the soil for potash manuring. Similarly the phosphoric 

 acid requirements are well indicated by the composition of the 

 ash of unmanured swedes, though in this case determination of the 

 citric acid soluble phosphoric acid in the soil gives even more 

 decisive information. 



6. Pending the determination of phosphoric acid and potash 

 "constants" for some test plant occurring naturally on unmanured 

 land the interpretation of soil conditions from analyses of plant 

 ashes is not a practicable method by which chemical analyses of 

 the soil can be displaced. 



GRANTS OF LANDS BY CROMWELL TO SET- 

 TLERS IN JAMAICA. 



Colonial Secretary's Office, 

 Circular. 5th March, 1907. 



No. 13599/06. 



Sir, 

 I am directed to forward to you the enclosed copy of a Procla- 

 mation by the Lord Protector Cromwell dated I oth October, 1655, 

 regulating grants of Land to settlers in Jamaica, and I am to ask 

 that you will have this sheet secured at the first page of the first 

 volume of the Revised Statutes of Jamaica in your office, as a 

 matter of public interest in connexion with the Colony. 

 I have the honour to be, 

 Sir, 

 Your obedient Servant, 



H. Clarence Bourne, 



Colonial Secretary. 

 The Director of Public Gardens 

 and Plantations, Kingston. 



