6 books
Elementary Hydrostatics
Elements of Geometry
Elements of Geometry Containing Books I to VI and Portions of Books XI and XII of Euclid
Elementary Trigonometry [microform]
Elements of Geometry, Containing Books I and II with Exercises and Notes
A Treatise on Arithmetic
![Cover of Elementary Trigonometry [microform]](https://images.bookhype.com/covers/35/03/952832fa-cfd3-43aa-9455-78b8eb253053/9781178502329-691f55faf20dacb587570e-medium-cropped.jpg)
