A little more in depth instructions. You want dried skins for your bow, not tanned or salted.
I was given some the other day and didn't know they had been salted. Salted skins will not stick to a bow and stick poorly even after they have been washed a dozen times. I put one on the bow and it wouldn't stick, called the guy who gave them to me to see if they had been salted(it didn't show), yep, they had been.
Skin your snake, Use a staple gun to tack it to a board, flesh side up. Put a staple every couple inches through the belly scales and stretch the skin side to side and length ways as you go. Use a spoon to flesh the skin while it is wet. Scrape the meat from the middle of the back to the belly scales, get it all. Some skins have no meat on them, copperheads for example.
Let your skin dry for a day or two and while it is still tacked down use a pair of scissors to cut it loose from the board by trimming off the belly scales and leaving them tacked to the board.
Roll up your dried skin and store in a Ziploc. bag. Put them in a bowl of warm water to rehydrate them when you want to back your bow with them.