++++++++++++++++++++++++++++++++++++++
'An Elementary Treatise on Determinants  with their application to Simultaneous Linear Equations and Algebraical Geometry' published by Macmillan in1867 in brown cloth. Below is the title page of the first edition of Dodgson's only full mathematics textbook, which presents his method for computing the determinant of a square matrix, greatly simplifying what was until then a tedious process of multiple computations. Determinants are useful in the analysis and solution of linear equations. Emerging in connection with the theory of equations, by the nineteenth century determinants had become an increasingly significant area of mathematical study. He had in 1866 published a pamphlet 'Condensation of Determinants' which he read to the Royal Society on the 17th May of that year.
+++++++++++++++++++++++++++++++++++++
The first edition of 'Doublets. A WordPuzzle' was published by Macmillan in 1879. It is a small slim volume just 39 pages which was expanded the following year to a full size book with 73 pages. There is also an abridged edition published in 1879.The copy below came with 'An Easter Greeting' dated 1880, loosley inserted. They had appeared in 'Vanity Fair' during 1879.
+++++++++++++++++++++++++++++++++++++++++++++++++++++
The first edition of 'Pillow Problems' was published in 1893, the book below is the third edition of this and appears to be much the same as the revised second edition including the preface to the second edition and was published in 1894.
++++++++++++++++++++++++++++++++++++++++++++++++++++
'Castle Croquet' was first published 1863 as a pamphlet, this edition is the revised 1866 edition reprinted in 'Aunt Judy's Christmas Volume ' for 1867
+++++++++++++++++++++++++++++++++++++++++++++++++++++
First Published by Macmillan in 1888 this is the third edition, published in 1890. This edition includes a few changes from the 1st edition and replies to critics. The frontispiece and allied figures bear a tetragon instead of a hexagon as in the 1st & 2nd editions.
++++++++++++++++++++++++++++++++++++++++++++++++++++

+++++++++++++++++++++++++++++++++++++++++++++++++++++
'The Game of Logic' was first published in 1886 as a special edition of around 50 copies. The book below is therefore the Second but first published edition. It appeared in 1887 published by Macmillan and contained an envelope with a card diagram (see below) and 9 counters, 4 red and 5 grey. This was available separately for 3d.
++++++++++++++++++++++++++++++++++++++++++++++++++++++
The first edition of 'Symbolic Logic' Part 1 was published by Macmillan in 1896. The book shown is the revised second edition published the same year, the title page is from the first edition. There is also a Pamphlet, Card and Counters dated 1896, issued with the 3rd & 4th editions but available before. The card has two diagrams and there are 4 red and 5 grey counters
+++++++++++++++++++++++++++++++++++++++++++++++++++++
This new edition of 'Symbolic Logic' was published in Britain by Harvester Press in 1977. It includes Symbolic Logic Part I and a reconstruction of Part II taken from a variety of sources. This second part is published here for the first time.
++++++++++++++++++++++++++++++++++++++++++++++++++++++
Published by Macmillan in 1885, this is the second edition of the book first published in 1879. This 2nd edition contains a short extra preface prefixed to the original preface, signed 'C.L.D., Ch. Ch. 1885'. Much of the matter of the 'supplement' (1885) is incorporated, this supplement may have been issued at the same time as the 2nd edition.
++++++++++++++++++++++++++++++++++++++ 