( xiv )
ten twice over, or words foreign to the sense introduced into the text. In printing the Arabic part, I have included in brackets many of those words which I found in the manuscript, the genuineness of which I suspected, and also such as I inserted from my own conjecture, to supply an apparent hiatus.
The margin of the manuscript is partially filled with scholia in a very small and almost illegible character, a few specimens of which will be found in the notes appended to my translation. Some of them are marked as being extracted from a commentary (شرح) by Al Moziahafi[1], probably the same author, whose full name is Jemaleddin Abu Abdallah Mohammed ben Omar al Jaza’i al Mozihafi[2], and whose “Introduction to Arithmetic,” (مقدمة في الحساب) is contained in the same volume with Mohmmed’s work in the Bodleian library.
Numerals are in the text of the work always
