How a bone marrow transplant works \r\n \r\n A bone marrow or cord blood transplant replaces unhealthy blood-forming cells with healthy ones.There are two types of transplants autologous and allogenic. The role of bone marrow \r\n \r\n Marrow is the soft tissue inside bones that produces.Skip Navigation.ow a bone marrow transplant works \r\n \r\n A bone marrow or cord blood transplant replaces unhealthy blood-forming cells with healthy ones.There are two types of transplants autologous and allogenic. The role of bone marrow \r\n \r\n Marrow is the soft tissue inside bones that produces. Skip Navigation.
Vellum finish is typically a term used to describe the finish on paper stock. The two main types of vellum paper include vellum finish paper and translucent vellum paper. Novice crafters should be clear on the definitions in order to stock the correct type of paper for a specific paper craft.
Parchment with a quill and ink. Parchment is a writing material made from specially prepared untanned skins of animalsâprimarily sheep, calves, and goats. It has been used as a writing medium for over two millennia. Vellum is a finer quality parchment made from the skins of young animals such as lambs and young calves. It may be called animal membrane by libraries and museums that wish to avoid distinguishing between parchment and the more restricted term vellum.