Women's apparel retailer and cataloguer J Jill Group Inc on Thursday revealed it more than doubled its second quarter earnings to $6.4 million from $2.5m in 2001 on the back of a 30.5 per cent jump in sales to $86.4m from $66.2m in the year-ago period. The Massachusetts-based company said for the current quarter it sees sales of $76m to $79m and earnings per share of $0.17 to $0.18, and in the fourth quarter sales of $106m to $110m and earnings per share of $0.41 to $0.43.