The data of 71 ${\ensuremath{\tau}}^{+}$ decays found in emulsions exposed at the Bevatron are presented and analyzed. These data are free from selection bias favoring short-ranged pions. Of these 71 events, 13 have negative pions under 10 Mev and one event has a ${\ensuremath{\pi}}^{+}$ of (0.38\ifmmode\pm\else\textpm\fi{}0.03) Mev. Assuming the distribution functions proposed by Dalitz, the relative probabilities that the 71 events turn out the way they did are 1, ${10}^{\ensuremath{-}7.9}$, ${10}^{\ensuremath{-}33.5}$, ${10}^{\ensuremath{-}8.8}$, ${10}^{\ensuremath{-}10.5}$, and ${10}^{\ensuremath{-}2}$ for the respective (0-), (1+), (1-), (2+), (3-), and (3+) spin and parity configurations. The (0-) distribution function of Dalitz is statistically a good fit to the data. In addition, 55 Massachusetts Institute of Technology and 100 Berkeley $\ensuremath{\tau}$ decays are shown to behave essentially the same way. No indication of polarization of the Bevatron $\ensuremath{\tau}$ beam was found. Conclusions are drawn from the data that the $\ensuremath{\tau}$ and $\ensuremath{\theta}$ mesons have different spin-parity configurations and that the only reasonable possibilities for the $\ensuremath{\tau}$ are (0-) and (2-). The data are also used to give an upper limit for the $s$-wave pion-pion interaction.