Some Properties Of Skein Tree

This paper gives four properties of skein tree.The first is that if two knots are mutants of each other then they can have the same skein tree.The second,for any given integer n＞0,the author constructs a link whose skein depth is n,using a theorem of Abigal Thompson.The third is a relation between the skein formula for one link diagram D and the skein formula for D's mirror image.The last is a restriction on component numbers of any skein formula.