"Game of Logic" Lewis Carroll introduced an original method of
working logical problems by means of diagrams; this method he
superseded in after years for a much simpler one, the method of
"Subscripts."

In "Symbolic Logic, Part i." (London: Macmillan, 1896) he employed
both methods. The Introduction is specially addressed "to Learners,"
whom Lewis Carroll advises to read the book straight through, without
_dipping_.

This Rule [he says] is very desirable with other kinds of
books--such as novels, for instance, where you may easily
spoil much of the enjoyment you would otherwise get from the
story by dipping into it further on, so that what the author
meant to be a pleasant surprise comes to you as a matter of
course. Some people, I know, make a practice of looking into
vol. iii. first, just to see how the story ends; and perhaps
it _is_ as well just to know that all ends
_happily_--that the much persecuted lovers _do_
marry after all, that he is proved to be quite innocent of
the murder, that the wicked cousin is completely foiled in
his plot, and gets the punishment he deserves, and that the
rich uncle in India (_Qu._ Why in _India? Ans._
Because, somehow, uncles never _can_ get rich anywhere
else) dies at exactly the right moment--before taking the
trouble to read vol i. This, I say, is _just_
permissible with a _novel_, where vol. iii. has a
_meaning_, even for those who have not read the earlier
part of the story; but with a _scientific_ book, it is
sheer insanity. You will find the latter part
_hopelessly_ unintelligible, if you read it before
reaching it in regular course.

* * * * *

CHAPTER IX

(1897-1898)

Logic-lectures--Irreverent anecdotes--Tolerance of his
religious views--A mathematical discovery--"The Little
Minister" Sir George Baden-Powell--Last illness--"Thy will
be done"--"Wonderland" at last!--Letters from friends "Three
Sunsets"--"Of such is the kingdom of Heaven."

The year 1897, the last complete year which he was destined to spend,
began for Mr. Dodgson at Guildford. On January 3rd he preached in the
morning at the beautiful old church of S. Mary's, the church which he
always attended when he was staying with his sisters at the Chestnuts.

On the 5th he began a course of Logic Lectures at Abbot's Hospital.
The Rev. A. Kingston, late curate of