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would form a profitable application. Its effect on quality certainly 

 was not a deteriorating one, and I look on castor or mustard 

 cakes as the manures for tea, obtainable from sources outside the 

 gardens themselves, which have the greatest future before them. 

 They supply all the constituents which the tea bush needs, 

 and if imported should be bought on a guaranteed analysis, 

 not to contain, in the case of castor cake, less than 5*5 per cent. 

 Nitrogen and 4 per cent. Phosphate of Lime ; in the case of 

 mustard cake, less than 4*5 per cent. Nitrogen and 5 per cent. Phos- 

 phate of Lime ; in the case of cotton cake, less than 4 per cent- 

 Nitrogen and 5 per cent. Phosphate of Lime ; and finally, in the case 

 of linseed cake, less than 4*5 per cent. Nitrogen and 5 per cent. Phos- 

 phate of Lime. The following are some analyses made recently of 

 good quality oil cakes used in Assam last winter. Of the item 

 marked "alkalies, &c." about half in each case will consist of Potash. 



Oil cake is best applied before the first hoeing, in spring (when 

 it is mixed with the soil by that hoeing), at the rate of 10 to 15 

 maunds per acre. It may roughly be said that mustard cake is four- 

 fifths as valuable as castor cake, and linseed cake slightly more 

 valuable than the former. The best way to apply it is in a trench 

 round each bush a foot away from the stem, but broad-casting and 

 then hoeing in is almost as good, 



Some things, however, castor or other oil cake cannot do. 

 It cannot, for instance, bring back a washed slope, consisting 



