A Philadelphia bookseller writes: " The notice which you gave of Underwood's ferns brought me an order for a copy, and I sent to the author, who is also his own publisher, for his bookseller's prices. I learned by return mail that there was a small margin conditioned on the purchase of at least four copies in order to make any profit on the one. So I ordered the four copies and sent net cash with the letter. Since this time I have written several letters, but got no reply, and, in despair of getting the work from our house, the customer countermanded his order. It seems to me you ought to show up a professor like this as well as notice his work."

[We can only say that on receipt of a circular from Prof. Underwood, we enclosed a dollar for the work, and which came at once in due course of mail. The notice of the work was based on its merits, as judged from this copy bought of him, and we know nothing further.

At this season of the year college professors usually take a holiday, and the explanation probably is that he has "gone off" for the season. But when a man undertakes to be his own publisher, he has no right to go away without leaving some arrangements for attending to business. Since writing the above the Philadelphia dealer informs us that the books have come to hand, but long after they were of any present use to him. - Ed. G. M.]