4 books
A History of the Mathematical Theory of Probability
The Elements of Euclid for the Use of Schools and Colleges; Comprising the First Six Books and Portions of the Eleventh and Twelfth Books with Notes, an Appendix, and Exercises
The Elements of Euclid for the Use of Schools and Colleges; Comprising the First Six Books and Portions of the Eleventh and Twelfth Books with Notes,
The Elements of Euclid for the Use of Schools and Colleges