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The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from Madam How and Lady Why by Charles Kingsley: from the Copiolites is good; but the superphosphate from fresh
bones is better still, and therefore dearer, because it has in it
the fibrine of the bones, which is full of nitrogen, like gristle
or meat; and all that has been washed out of the bone-earth bed
ages and ages ago. But you must learn some chemistry to
understand that.
I should like to be a scientific man, if one can find out such
really useful things by science.
Child, there is no saying what you might find out, or of what use
you may be to your fellow-men. A man working at science, however
dull and dirty his work may seem at times, is like one of those
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