MEO CARO COMPADRE,--I have been intending to write you every night for the last month, but the strange epistolary inertia which always weighs down upon me has kept me from it until now. I have had news of you two or three times from my father having met yours, and from Dexter, who said he had met you in New York. I am very curious to know how you find your occupation to suit you, and if you find the dust of daily drudgery to obscure at all the visions of your far-off-future power. From what Dexter said I am afraid they do a little. We had given up Allen[33] as gone to the fishes; but the poor Devil arrived last week after a 98-days' passage!!! I never felt gladder for anything in my life. He had a horrible time at sea, being within 160 miles of New York and then blown back as far as St. Thomas. He says most of his collections arrived at Bahia spoiled by the sun. He was sixteen days crossing a limestone desert on which nothing grew but cacti; so there was no shade at noon, and the thermometer at 98°. His health has been improved by the voyage, however, and he thinks it is better now than when he left for Brazil. Nevertheless he is going to give up natural history for the present and adopt some out-of-door life till he gets decidedly better, which he says he has been slowly but steadily doing for some years past. Poor Allen! None of us have been sold as badly as he. If I had not been to Brazil, I would go again to do what I have done, knowing beforehand what it would be. Allen says _he_ would not, on any account.