Organic Manures 



phosphoric acid has it the value or the assimilability 

 of good guanos. It is a slow and expensive manure. 



Fish Guano. 



The manufacture of fish guano is one of the best 

 industries from the agricultural poirft of view, and 

 as long as it can be carried on economically, it 

 ought to be encouraged. It is, as a matter of 

 fact, returning to the land that which the sea has 

 taken from it. Every river, every stream, every 

 rainstorm carries down to the sea soluble fertilising 

 elements, washed out of the earth. It is at the 

 expense of the fertilisers which are taken from the 

 soil that the fish of the sea are multiplied, and 

 the sea never returns what it has taken. 



The question ought to be considered, therefore, 

 of the formation of a fishing-fleet working for the 

 guano manufacture, so that it should be no longer 

 a minor industry. This would allow of much 

 cheaper production. For the objection to fish 

 manure is that the demand is much greater than 

 the supply. Hence, in accordance with the natural 

 law, prices are so high that it is not possible to 

 recommend its purchase, since the manure would not 

 repay the outlay. 



There are other manures in which the fertilising 

 units are equally good, and much cheaper. Before 

 it can be a profitable investment for the farmer, the 

 output must be increased or the price lowered. 



The fish guano industry received a great impetus 

 in 1870, when the rich beds of guano of Peru were 

 exhausted. 



It is found on the market under various names : — 



no 



