In Partial View 1:

A square box has been delineated and

shown again in Fig’s. -5a & -5b.

• Fig. 5a shows

a typical triad with its 90° angle indicated.

• Fig. -5b shows

all the adjacents of that triad.

As can be seen:

• The 90° angle of the triad forces the

5 adjacents in the box to become arranged in

2 rows of numbers with

1 row oriented along each diagonal direction.

Each row extends from box-corner to box-corner.

See arrows.

• The 90° angle of the triad forces

1 adjacent to be located outside the box

and thus to become an isolate.

When this configuration is

positioned over

sector lines -2, -3, -4,

-including the spiral origin-

one or two of the adjacents

will be located differently

to comply with

the 90°angles of the spiral.

See in Fig. -5 at top of page.

In Partial View -2:

4 such boxes

-arranged like checkerboard squares of a single color-

have been delineated and

shown again in Fig’s. -5c & -5d.

These boxes

contact each other,

corner to corner, in both diagonal directions.

Therefore the co-linear rows inside these boxes also

contact each other,

corner to corner, in both diagonal directions.

Thru such contact the co-linear rows join to become

longer rows containing 6 adjacents.

Thru such contact among all the boxes in the spiral

these rows grow indefinitely,

along both diagonal directions, without interruptions.

See arrows.