Free Garden Catalogs - What is a "set" with regard to growing shallots?

What is a "set" with regard to growing shallots?

I'm looking at the online Burpee catalog and it says "Shallot - 1 Pkg. (10 sets)". What does it mean by "sets"? I'm thinking of ordering some to grow in my garden in the spring. http://www.burpee.com/shopping/product/detailmain.jsp?itemID=670&itemType=PRODUCT&iMainCat=13&iSubCat=2004&iProductID=670&iSubSubCat=1772

Public Comments

I means that the package contains 10 shallot bulbs. The same goes for an 'onion set'. It means 1 bulb.
A set is a small bulb, grown from seed or taken from scarf. A set will give a greater advantage on growth during the season. But has a draw back, the original set will leave a dark spot in the center. Now your asking yourself what's scarf?, garlic is asexual it grows a set at the top of it's stem, your growing shallots but they are all in the same family
a set is a plant that was started from a seed .usually 1 year old that has gone dormant for the season. by planting sets you get matured shallots.