If I am in a survival situation with a knife as my only cutting implement, and I need an axe to chop trees [(*because I know burning through them is not practical*)](https://outdoors.stackexchange.com/questions/14957/how-exactly-do-you-cut-down-a-tree-with-fire/14962#14962) how would I make one?  

What attributes do I look for in wood, stone and binding? Using only a knife and items found in the wilderness how do I fashion an axe that chops trees for making fires or building structures.