the moment of delivery, in their order of firstly, secondly, etc., is in a great measure responsible for the popular estimate of the dryness of sermons, where this kind of plan prevails more than anywhere else." (Extempore Speech, pp. 167-9.) (e). Of the several kinds of discourses here alluded to no better examples may be formed of the historical discourse than that of the Christian martyr Stephen, Acts, vii; of the logical or argumentative discourse Peter's Discourse on the Day of Pentecost. The nearest approach to the Discourses based upon a text in the New Testament is Paul's speech in Mars Hill, at Athens, Acts xvii:22-31. _Clearness in Speeches:_ This subject has been referred to in Lesson VI, XIII, XVI, and what is there said should here be reviewed not only by those assigned especially to this lesson, but by the whole class. One of the chief faults opposed to clearness is ambiguity. This is defined as follows: "The term 'ambiguity' comes from the Latin ambiguos, which means "wavering" or "uncertain," and an ambiguous sentence is one containing a word, a phrase, or a clause, capable of two or more interpretations." (Composition and Rhetoric, Herrick and Damon, p. 302.) As example of ambiguity the authority just quoted gives the following: _Example:_ 1. We hold a grand raffle Friday for the benefit of William Miller who lost his foot for a fine clock last week. _Corrected:_ We hold a grand raffle Friday for a fine clock, for the benefit of William Miller who lost his foot last week. _Example:_ 2. Then he came into the room talking about the relations between Smith and Johnson, and he said that if he didn't stop that sort of thing very soon, he was sure to get into trouble. _Corrected:_ Then he came into the room talking about the relations between Smith and Johnson, and said that if the former didn't stop irritating Smith very soon, he was sure to get into trouble. _Example:_ 3. I only thought that he wouldn't go unless I bought him off, not that he wouldn't go at all. _Corrected:_ I thought only that he wouldn't go unless I bought him off, not that he wouldn't go at all. _Example:_ 4. The banker, though he trusted the teller, as is apt to be the case with men of his sort, yet felt that the loss occurred at his desk. _Corrected:_ Though the banker, as is apt to be the case with men of his sort, trusted the teller, yet he felt that the loss had occurred at the latter's desk. Commenting on the above our author says: "The first sentence seems to say that Miller gave his foot in exchange for a fine clock. Sentence two leaves in doubt whether the one who is to get into trouble is the speaker, Smith, or Johnson. In three, "I only" might be taken to mean "I alone." In four, it is uncertain whether such men as the banker commonly trust all tellers, or whether this teller is the sort of man whom most people trust."