alice brans posted Heirloom Crochet - Vintage Crochet Stitches You must check out this awesome resource! to their -crochet ideas and tips- postboard via the Juxtapost bookmarklet.
This site has it all! Loads of crochet stitches plus knit, tatting, lace making and much more! This stitch is called Crossed trebles. The site this comes from is full of wonderful stitches, tips and tricks. It's certainly worth a look around.
Crochet Work - Chapter IX - Encyclopedia of Needlework, Crochet Patterns, Stitches, Crochet Lace Patterns. The Mother Load on ALL needlework! And beautiful patterns.