  We will show that Carl Stumpf's interpretation of the concept of probability
is best understood as that of an objective Bayesian. First we analyse Stumpf's
work in relation to that of his contemporary Johannes von Kries, and after that
we will discuss various ways in which Stumpf's probability-concept has been
construed. By showing that the construals of Stumpf's account by Hans
Reichenbach, Richard von Mises and Andreas Kamlah are unfair - and at some
points incorrect - we uncover the aspects that are essential to Stumpf's
probability interpretation.
