There is an instruction missing to miss stitches on Row 2 of this pattern. Please see below for the correct instructions:  

Row 2: 4 ch, miss 1 tr, 1 tr, [1 ch, miss 1 tr, 1 tr] twice, *6 tr, [1 ch, miss 1 tr, 1 tr] 3 times; rep from * 1 (10, 11) more times to end, working last tr into 3rd ch of 4 ch from previous row. Turn.  

Every row should also finish with Turn at the end.

Menton Sweater, page 30

Due to the yarn being held double throughout this pattern, the amount of yarn needed for this project should read:

Rico Baby Cotton Soft DK, 6 balls in Patina 050

Once you have completed your project, we recommend washing and blocking your finished Menton Sweater to relax the fabric which may feel stiff to begin with.