Improving bird's antidotes

In this paper I will first consider Bird's cases against the conditional analysis of dispositions and defend them from Gundersen's objection. This does not mean that I believe that Bird's cases are successful. To the contrary, I take it that we can save the conditional analysis from Bird's cases by taking Lewis's two-step approach to dispositions. However, I will go on to argue that if Bird's cases are supplemented with the assumption that dispositions are intrinsic matter, they are able to do what they are intended to do.