NO RESERVE Mathematics.- Dodgson (Charles Lutwidge) An Elementary Treatise on Determinants with their application to Simultaneous Equations and Algebraical Geometry, first edition, dark grey endpapers (as opposed to the regular white), occasional ink or pencil marginalia and inter-linear notes in an unidentified hand, front free endpaper adhered to pastedown and with a couple of short tears, occasional spotting, original dark brown cloth, spine gilt, spine ends and corners little worn, rubbed, [Williams [et al.] 57], 4to, Macmillan and Co., 1867.

⁂ In his diary entry for 27th February, 1865, Dodgson writes that he had 'discovered a process for evaluating arithmetical Determinants, by a sort of condensation, and proved it up to 4^2 terms.' His paper on the subject was read to the Royal Society on 17th May, and it appeared in the Proceedings, no.84, 1866. Thereafter, he continued work on it and later writes that this 'little book... has given me more trouble than anything I have ever written: it is such entirely new ground to explore.'