I had singled out a young bull which turned off from the herd, and I followed it up, expecting to be able to get ahead of it, so that I might point my spear full at its breast in the way I had seen several of the Indians do, knowing that my mustang would spring on one side should it be necessary.  Suddenly the bull stopped; then turning round and seeing me before it, came rushing towards me.  I endeavoured to run my spear into its breast, and then make my steed spring out of the way.  I thrust my spear with all my force; but before I could let go my grasp it was whisked out of my hand, after which my horse sprang clear of the animal with a bound which very nearly threw me from the saddle, and had galloped some distance away before I could stop it.