I was initially unable to find my copy of the the Permethrin article, but below are some sites. While checking these pages I found the ABA Sales Catalog entry which gives the reference to Dr. Mellor's article in WINGING IT Sept 1992 (I believe that must be an Americam Bird Association publication). The essence of the article is to spray 0.5% Permethrin on clothes until damp and allow to dry. They mention Coulton's formula, which I was unable to identify. I have used a 3.20% product simply called Permethrin which is "Maunfactured for AGRA LABORATORIED LTD, P.O. Box 3103 St. Joseph MO. 64503 USA." I dilute it to 0.5% and spray on all clothes. The article claims that the material bonds to the fabric of the cloth, is virtually non-toxic to humans, is deactivated upon contact with the skin (and therefore must be used in conjunction with DEET on exposed skin). In tick experiments in Massachusetts they got 100% protection against all three stages of the deer tick and the same with the black legged tick in western U.S. I buy mine for $21.95 a quart (32 Fl Oz.) at a store called AnimalMedic and need use only a few ounces diluted to spray all of my africa clothes. I also use the same stuff on my dogs, which love to run in the grass, and find that I need to dip them every six weeks to keep the ticks off. The unanswered question is, "What will it do to the tranquility of the bees if it is covering your clothes?" http://myglobalmall.com/scs/perm.htm Government program http://myglobalmall.com/scs/dod.htm The DOD Protective System From ABA Sales Catalog Odorless Duranon Tick Repellent Prevent Lyme Disease! Information on the effectiveness of Permethrin in repelling ticks, chiggers, and mosquitoes is available from ABA Sales on request, and is supplied to each purchaser of Duranon. As well, you will find complete application directions on the can's label. Duranon is your first-line defense against insect-borne diseases such as Rocky Mountain spotted fever, encephalitis, and Lyme Disease. It repels and kill the "Lyme" tick. Odorless Duranon is NOT applied directly to your skin, but is applied to your birding clothing and must be allowed to dry before you wear the clothing. One can is sufficient to treat a set of pants, socks, long-sleeved shirt, and hat. For more information about insect-borne diseases and their prevention, read Prevent Insect Bites by Dr. Norman H. Mellor in Winging It, September 1992. Sorry but we are not able to ship Duranon out of the USA. Plan your purchases to allow time to surface shipment. Air shipment is available, but is VERY costly. Item #995 Duranon 6oz spray can $5.25 Item #996 Duranon 6oz pump bottle $5.25 Item #997 Duranon 8oz liquid concentrate $21.95 Jerry Barbor in PA