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intervals of a week, five times only in the whole, with Guano 
water, four ounces to the gallon of water, their leaves then 
began to curl, and, although the use of the liquid Guano has 
been discontinued two months, it is unlikely that the plants 
will recover till they are potted in fresh soil. Plants, of various 
sorts, in pots, watered only with Guano water, half an ounce to 
a gallon, have flourished astonishingly — none have failed. 
These are lessons which cannot be mistaken. 
In a pamphlet by Cuthbert W. Johnson, Esq , on Guano as 
a Fertilizer, which may be referred to by those who are inter- 
ested in the enquiry, we observe a communication from Henry 
Bland, Esq., of Liverpool, a late resident of Peru, in which is 
described the method of using this manure in that country. 
The practice is, doubtless, founded on experience, and indicates 
the propriety of applying it sparingly to young plants, and 
increasing the quantity in proportion to their strength. In 
allusion to the cultivation of maize, or Indian corn, Mr. Bland 
says, “ When the plants are six or eight inches above ground, 
a pinch of Guano, as much as can be easily held between the 
thumb and two fingers, is placed around each bunch, and the 
whole is usually irrigated immediately afterwards. Guano is 
again applied when the plant is about throwing out its fruits; a 
handful is then applied to each bunch, and irrigation immedi- 
ately follows. The next succeeding crops, potatoes and wheat, 
are produced without any further application of manure.” 
From amongst observations and experiments published by 
Messrs. Gibbs and Son, on Guano, and from private sources, 
we select the following information. In the growth of Pota- 
toes, two and a half cwt. to the acre, put into the drills, which 
probably would not be more than an ounce to the yard, its 
effect was superior to a regular supply of stable manure. 
Sown on Grass, at the rate of an ounce to the square yard, 
which, let it be recollected, is, in round numbers, 3001bs. to the 
acre, its effects have been proved to be highly productive. It 
has been used on Grass land, even to the amount of a ton per 
acre, and with still increased success. We have not yet dis- 
covered the extent to which it may be applied to Grass land, 
without its becoming injurious from excess of quantity. When- 
ever Guano is intended to be spread broadcast over land it will 
be the most convenient mode to effect its regularity by first 
