When I looked at this edge, I immediately wondered how it would look without the top rows (rows 1-6) of Border with Round-Loop Heading #40 from The Young Ladies' Journal Complete Guide to the Worktable (page 134, illustration on page 132).
So I made that first (so I could check out my instructions without making rows 1-6).
The pattern called for wool (wound double around the netting needle) and silk, 2 round mesh sticks (one half the size of the other), and a 3/4" wide mesh stick. I decided to use size 10 crochet thread (wound double around the netting needle) and size 20 crochet thread. For mesh sticks I chose to use a #8 knitting needle, a #3 knitting needle, and 3/4" flat mesh stick.
Round netting:
Round netting only differs from regular netting in the direction the netting needle is put through the loops of the previous row.
Wrap the thread around the fingers in the usual manner, put the netting needle through the loop around the fingers and under the mesh stick. Instead of going up through the loop formed in the previous row, come from above the loop and go down into it with the netting needle passing over the mesh sticks. Remove the threads from around the fingers and tighten the knot in the usual manner.
NOTES:
Use an odd number of loops for rows. Fill 2 netting needles: 1 filled with double thread (size 10) and one filled with single thread (size 20).
Instructions for the edge:
Begin by netting an odd number of loops into the foundation loop. I used 9 in the sample. Net 3 rows of netting (1 knot in each loop) with the #3 knitting needle and the single thread netting shuttle.
Row 1: double-thread netting needle, #8 knitting needle
Net 1 knot in each loop using round netting.
Rows 2-3: single-thread netting needle, #3 knitting needle
Net 1 knot in each loop.
Row 4: double-thread netting needle, #8 knitting needle
Net 1 knot in each loop using round netting.
Rows 5-6: single-thread netting needle, #3 knitting needle
Net 1 knot in each loop.
Row 7: double-thread netting needle, 3/4" flat mesh stick
Net 3 knots in the first loop, *skip a loop, net 3 knots in the next loop;* repeat from * to *.
Row 8: single-thread netting needle, #3 knitting needle
Net 1 knot in each set of double loops.
Row 9: single-thread netting needle, #3 knitting needle
Net 1 knot in the first loop without using a mesh stick (no loop formed), net 1 knot in each of the remaining loops.
Row 10: double-thread netting needle, 3/4" flat mesh stick
*Net 1 knot in the 1st loop, net together the 1st loop and the 2nd loop (the one next to the 1st loop), net 1 knot in the 2nd loop, skip a loop,* repeat using the next 2 loops as the 1st and 2nd loops.
Row 11: single-thread netting needle, #3 knitting needle
Net 1 knot in each set of double loops.
I also wondered how it would look with the entire edge made with a single strand of thread.
So I tried it with size 20 crochet thread.