Scrumble in the style of Irish lace.
Crochet Section of BEETON'S BOOK OF NEEDLEWORK.
I couldn't get it to jump to the crochet section using that link, but maybe it works for you. If not, try searching for "crochet instructions".
They use UK terminology (i.e. US calls a single crochet a single; UK calls a single crochet a double).
There are several interesting patterns, and it's a good read.