Charles Victor Langlois,
Introduction to the Study of History
“ A man writes a monograph when he proposes to elucidate a special point, a single fact, or a limited body of facts, for example the whole or a portion of the life of an individual, a single event or a series of events between two dates lying near together. The types of possible subjects of a monograph cannot be enumerated, for the subject-matter of history can be divided indefinitely, and in an infinite number of ways. ”
