I have no idea. I guess I am misunderstanding this . When I have searchedin Ancestry it has brought up trees inWorld Family Tree Collection and then this is what I read on the description "View any tree online, or download it to your computer using our quick and easy wizard. At a glance, you'll see family relationships and details of vital events. It's the fastest way to add information to your own family research." so I thought this covered all volumes. I am trying to search a line in my tree that has become a challenge and very hard to get any where on.. I guess I have to purchase something else also in order to view on line right?