that is exciting, make sure you wash them well before get it going.. if they came with gnat eggs of something like.... there will be problems. I find that it is best to let them resting in a newspaper lined box, so I can see them clearly and if need I will wash them again, rather than burry them in moss and have to disturb them and if bugs crawl in the moss, it is more difficult to see. I got some mulberries also, and the callous around their bottom is incredible. I pinched the flowers. One variety, Middleton is a bit slower to root. I put them all upside down- seems to work! I wish I did not have to put them in soil, that is when I lose my battle to stupid bugs....
you are lucky! I had a few varieties that I only received one!