sis never makes a Correlation. That is the
function of Synthesis. Since "extremes" are words with no relation
between them, Analysis cannot find what does not exist. But _accident_
sometimes makes a _spelling_ or _letter_ relation between the
"Extremes," and then Analysis can memorise these "extremes" by means of
such accidental relations. To illustrate:--

A physician was troubled to remember on which side of the heart are the
"mitral valves." As they are on the left side of the heart, he might
have noticed that "mitral" ends with the letter "l," and that the word
"left" begins with the letter "l"--as "l" belongs to both of these
words, here would be a case of analysis. Such a device, however, could
never be erected into a rule, for it is founded on accident only, and
cannot be used in all cases. How much more vivid to many persons in this
example is a Correlation, thus: "_Mitral valves_ ... mitred Abbots ...
none left ... _left_."

To remember which of the University crews wears _dark_ blue and which
_light_, we can note that the vowel "I" belongs alike to Cambridge and
"Light" and is absent from Oxford and "Dark."

Take a case in Trigonometry--a _Complement_ is what remains after
subtracting an angle from _one_ right-angle. Take 60 degrees from
90 degrees, and we have the complement 30 degrees--a _Supplement_ is
what remains after subtracting an angle from two right-angles. Take
120 degrees from 180 degrees and we have the supplement 60 degrees. How
to remember that "Complement" relates to one right-angle, and
"Supplement" relates to two right-angles, is a difficulty for a poor
memory. Looking at the accidents of the subject, we see that Supplement
and two right-angles have a relation in this, that Supplement begins
with S and two begins with _T_. S ... T. Hence we must remember that
Supplement relates to _T_wo right-angles, and, of course, the word
Complement to one right-angle.

Or to use the Synthetic Method: "_Complement_ (compliment) ... praise
bestowed ... prize-winner ... won ... _one right-angle_" (_Complement_
completes right-angle ... _one_ ... _right-angle_) or "_Supplement_ ...
supple ... bend double ... 'two double' ... _two right-angles_"
(_Supplement_ ... added to ... more than one right-angle ... _two
right-angles_).

I could give many other illustrations of the narrow scope of this Method
of Accidents, though _genuine within that scope_, and how, in _all_
cases, by the Synthetic Method we can f