But at 11 he would go into a land
of darkness and would have to feel his way. At 12 light breaks in
again, a pleasant sunshine, which continues up to 19 or 20, where
there is a sort of twilight. From here to 40 the illumination is
feeble, but still there is considerable light. At 40 things light up,
and until one reaches 56 or 57 there is broad daylight. Indeed the
tract from 48 to 50 is almost as bad as that from 1 to 9. Beyond 60
there is a fair amount of light up to about 97, From this point to
100 it is rather cloudy."

In a subsequent letter he adds:--

"I enclose a picture in perspective and colour of my 'form.' I have
taken great pains with this, but am far from satisfied with it. I
know nothing about drawing, and consequently am unable to put upon
the paper just what I see. The faults which I find with the picture
are these. The rectangles stand out too distinctly, as something
lying on the plane instead of being, as they ought, a part of the
plane. The view is taken of necessity from an unnatural stand-point,
and some way or other the region 1-12 does not look right. The
landscape is altogether too distinct in its features. I rather
_know that there is_ grass, and that there are trees in the
distance, than _see_ them. But the grass within a few feet of the
line I see distinctly. I cannot make the hill at the right slope
down to the plane as it ought. It is too steep. I have had my poor
success in indicating my notion of the darkness which overhangs the
region of eleven. In reality it is not a cloud at all, but a darkness.

"My sister, a married lady, thirty-eight years of age, sees numerals
much as I do, but very indistinctly. She cannot draw a figure which
is not by far too distinct."

Most of those who associate colours with numerals do so in a vague
way, impossible to convey with truth in a painting. Of the few who
see them with more objectivity, many are unable to paint or are
unwilling to take the trouble required to match the precise colours
of their fancies. A slight error in hue or tint always dissatisfies
them with their work.

Before dismissing the subject of numerals, I would call attention to
a few other associations connected with them. They are often
personified by children, and characters are assigned to them, it may
be on account of the part they play in the multiplication table, or
owing to some fanciful association with their appearance or their
sound. To the minds of some persons the