are but few of them, even in the neighbouring countries, so that there is increased difficulty to procure them, it is 'very rare;' (4) If the number of copies be but fifty or sixty, and those scattered, it is 'extremely rare;' (5) And finally, every work of which there are not ten copies in the world is 'excessively rare.' In all these cases, it must be supposed that the book is a book sought for, and that the seekers are more numerous than the sought.
In the matter of Condition and its effect upon price, long training is required before all the qualities of a copy can be properly defined. There are copies on 'vellum,' 'large paper,' 'fine paper,' 'coloured paper.' There are 'crisp' copies, 'uncut' copies, 'tall' copies, 'ruled' copies, and 'illustrated' copies, cum multis aliis.
Fashion determines much as to price. As soon as it becomes a fad to collect books relating to some particular subject, competition instantly steps in, and prices go up. It may be well to state, f