Before any one consents to introduce a work written by another, three questions should be settled. These are: Is a book upon the subject needed? Is this book adapted to be useful Is the author a person whose testimony is trustworthy and one who can be commended to the favorable consideration of those who respect the writer of the proposed introduction Nor are these all the questions which naturally arise for unless there be something said in the introduction which is not con tained in the body of the work, it is superfluous to write any thing but a simple word of commendation. Yet it would not be legitimate to introduce wholly foreign matter. Consenting to write the introduction to Mr. Comstock's work, implies that I have determined these inquiries in the affirmative.
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