In a message dated 7/31/2005 11:58:50 A.M. Pacific Daylight Time, drupert at premier1.net writes: Ah, but if it's invisible how do you know when that is? Dudley Snohomish, Washington Dummy stick your finger in bottle if it come out wet you have ink. Walt Davies Cooper Hollow Farm Monmouth, OR 97361 503 623-0460