59 



. side of these I place an average analysis of good farmyard manure for 

 comparison :- • 





Urban Cane Manure. 



A T^f V A "R n 1VT A V TTTtH * 





No. 1. 



No. 2. 



No. 3. 



No. 4. 



water ... . .. 



10.50 



19 14. 



1 9 on 



66.17 



Organic matter, &c. 



31 .10 



40.00 



26.60 



OQ OA 



. Z4: 



Phosphoric acid 



8.70 



1 A At 

 10.41 



11 dt 

 11. Ol 



0.27 



Sulphuric acid 



11.76 



8.89 



9.80 



0. 11 



Chlorine 



1.50 



1 OA 

 1 .20 



O A A 



A. 40 



trace 



Lime 



18.06 



14.21 



17.59 



2.18 



Magnesia ... 



0.80 



1.14 



2.50 



0.10 



Potash ") 



5.64 



/ 2.21 



2.00 



0.60 



Soda / 



\ i.io 



1.70 



0.07 



Oxide of manganese 



0.75 





0.30 





Oxide of Iron and alumina 



2.19 



2.25 



4.00 



0.20 



Soluble silica ... 



1.00 



0.45 



0.44 



0.94 



Sand, &c. 



8.00 



6.00 



9.06 



1.12 





100.00 100.00 100.00 



100.00 



Nitrogen, equal to ammonia 



2.85 



3.28 



2.40 



87 



There is a test by which the urban manure can be distinguished from 

 any other (except farmyard manure), namely, its property of yielding a 

 certain amount of its organic substance to strong alcohol (rectified spirits 

 of wine), and forming therewith a dark-coloured solution. 



The above is an ultimate analysis of three cargoes of this urban cane 

 manure prepared especially for certain estates, the soils of which had 

 been previously submitted to me for analysis. The immediate analysis 

 of this product shows that it contains all the ingredients, or compounds, 

 found in well-made farmyard manure ; and if we suppose the latter 

 deprived of its abundant moisture, the composition of the two would 

 present a great similarity. 



Such, then, is the fertiliser which I more particularly recommend fo 

 the long- worked cane soils of our colonies, the action of which, with r 

 propor amount of tillage, will, in the course of three or four seasons* 

 prove of the greatest advantage to the planter. 



VII. 



The refuse of distilleries, and all other refuse collected during the 

 concentration and clarifying of the juice, should be put together into a 

 large compost heap, where these materials should be mixed with megass 

 ash, leaves, straw, pen manure, stable manure, &o. ; and a heap of this 

 kind should be attached to every plantation. It should be piled high, 

 so that its ingredients may be well pressed together ; it should be pro- 

 tected from the rain, and any liquid that drains from it should not be 

 wasted, but carried on to the ground with the manure itself, or soaked 

 up by dry leaves or cane ash. 



The best method of using the acid superphosphate manures would be 

 to mix them intimately with one-quarter their weight of good Peruvian 

 guano and one-quarter their weight of cane ash, and apply the mixture 



