Website: Evolution of Tutu Construction Through the Years?, And culture by culture? Options

[vagansmom]

Does anyone know a good web resource for how tutu construction has changed through the ages? I'm looking specifically for info about tutu construction through the last 100 years. How has it changed? Boning, for example. What was used before the flexible pieces that are inserted as boning today? I assume bone really was used at one time. When? And thickness of netting: I know it varies depending on the type of ballet and I know the difference between romantic tutus (ala Les Sylphides) and a powder puff tutu, but did it also change through the years and are there differences depending on where (what country) it was made? Can one distinguish a Russian tutu from, say, a French one, etc.?

If anyone can answer these questions, which really are just a jumping off point in my quest, I'd love to hear them. But I really, really (IMG:http://ballettalk.invisionzone.com/style_emoticons/default/beg.gif) want to see pictures too.

Thanks.