By the addition of sulphuric acid the ammonia was fixed, and the guano was prevented from losing its most valuable constituent.
In the early days of its use all guano was in his eyes of the same value.
In our opinion there would be such a rattling among the dry bones, we should hear no more about substituting them for guano.
It had, moreover, the effect of producing a guano of uniform composition.
Where farmyard manure is used, the guano has been recommended to be used as a top-dressing in small quantities.
We have already referred to the guanos in the chapter on guano.
The exports include copper and silver and their ores, nitrate of soda, borax, guano and other minerals in small quantities.
No doubt this was its function when applied along with Peruvian guano.
As to guano, it has not paid me; but that may be the fault of careless or unskillful application.
My dear, the guano will be here to-day; so the horses will be wanted all the week—remember that.
c.1600, from Spanish guano "dung," especially of sea-birds on islands off Peru, from Quechua huanu "dung."