Inventories (Tables)

9 Months Ended

Sep. 30, 2012

Inventories [Abstract]

Inventories by Major Category

     The following is a summary of inventories by major category:

(millions of dollars)		September 30, 2012		December 31,2011
Raw materials	$	38.8	$	38.5
Work-in-process		7.7		6.0
Finished goods		26.1		26.1
Packaging and supplies		20.5		20.2
Total inventories	$	93.1	$	90.8