  The logistic birth and death process is perhaps the simplest stochastic
population model that has both density-dependent reproduction, and a phase
transition, and a lot can be learned about the process by studying its
extinction time, $\tau_n$, as a function of system size $n$. A number of
existing results describe the scaling of $\tau_n$ as $n\to\infty$, for various
choices of reproductive rate $r_n$ and initial population $X_n(0)$ as a
function of $n$. We collect and complete this picture, obtaining a complete
classification of all sequences $(r_n)$ and $(X_n(0))$ for which there exist
rescaling parameters $(s_n)$ and $(t_n)$ such that $(\tau_n-t_n)/s_n$ converges
in distribution as $n\to\infty$, and identifying the limits in each case.
