He shows very convincingly and interestingly that the destruction of forests causes not only floods in winter and spring, but drought in summer and autumn.

And the efforts which have recently been made in Italy to take some steps towards the reclothing of the mountain sides, have in great measure been due to his work, which has been largely circulated in an Italian translation.
The following letter which I select from many received from him, is not without interest.

It is dated 30th November, 1867.
* * * * * "DEAR SIR,--I return you Layard's article, which displays his usual marked ability, and has given me much pleasure as well as instruction.
I should much like to know what are his grounds for believing that 'a satisfactory settlement of this Roman question would have been speedily brought about with the concurrence of the Italian Government and the Liberal party in Rome, and with the tacit consent of the Emperor of the French, had it not been for the untoward enterprise of Garibaldi,' p.283.I certainly have not the slightest ground for believing any such thing; nor do I understand _to whom_ the settlement referred to would have been 'satisfactory.' Does Mr.Layard suppose that any conceivable arrangement would be satisfactory both to the Papacy and to Italian Liberals out of Rome?
The _Government_ of Italy, which changes as often as the moon, might have accepted something which would have satisfied Louis Napoleon, Antonelli, and the three hundred _nobili_ of Rome, who waited at dinner, napkin on arm, on the Antiboini, to whom they gave an entertainment,--but the people?
"I send you one of Ferretti's pamphlets, which please keep.

And I enclose in the package two of Tuckerman's books.

If you could turn over the leaves of these and say to me in a note that they impress you favourably, and that you are not displeased with his magazine article, I will make him a happy man by sending him the note.
"Very truly yours, "GEO.P.