The bottom of the dress, skirt more properly called, must be large in proportion to the stature of the person who put it on and its length must not see the ankle or at least the point the shoe.
The fabric of her skirt and curled loosely arranged with wide folds fulfilled, which dilate the edge in a large circle until they touch the ground.
To make full skirts, you use a crinoline petticoat, not to be confused with the structure made of iron bands in vogue in the 60 century.
The crinoline is a real and its fabric, invented by Parisian Oudinot, in the '40s who lacaratteristica to be strong and light at a time, and replacing the many sce-starched muslin skirts a few years before.