For all these patterns, I used a size 10 (bedspread) cotton crochet thread and a steel size 7 (1.65 mm) crochet hook.
Stitches used in US terms.
Ch/ch-------------chain
Sl st/sl st---------slip stitch
Hdc/hdc----------half double crochet
Sc/sc--------------single crochet
Sk/sk--------------skip
Special Stitches
Beginning Cluster (Chain 3, 2 dc, holding last loop of each stitch on hook, pull through all loops at once.)
Cluster (3 dc, holding last loop of each stitch on hook, pull through all loops at once.)

Stitches used in UK terms.
Ch/ch-------------chain
Ss/ss--------------slip stitch
Htr/htr------------half treble crochet
Dc/dc-------------double crochet
Sk/sk--------------miss
Special Stitches
Beginning Cluster (Chain 3, 2 tr, holding last loop of each stitch on hook, pull through all loops at once.)
Cluster (3 tr, holding last loop of each stitch on hook, pull through all loops at once.)