]'{_p thread ................... 17_20
Tnt} thread tension .............. 19"-20
lop thread tension control ....... 2, 19_20
Turning a sqtJare corner ............. 28
"fwo point box stitching ........... 26. 54
Two-point shell stitching .......... 25, 50
Zigzag foot ........................
..... 11. 23_26, 31, 3.5"40, 50._53. 60"..61
Zigzag stitching ............. 23, 31_36
Zigzag overcasting ................. 36
Zipper application ........... 23, 48_4g
Zipper foot ...... 4, 12, 23, 48_49, 60_61
63