A model for the age distribution of pulsars is developed and compared with the observed distribution. This model gives a value of n~4 in the phenomenological slowdown relation, [equation]. A value for the galactic birthrate of visible pulsars is also found and is approximately 6 x 1 to the -16 pc to the -3 yr to the -1. The magnetic field decay time is found to be no smaller than 15 million years and the model is consistent with a constant magnetic field. In addition, observational selection effects are considered in fitting measured values of n and Q to the above slowdown relation. We find n = 4. ± .6 and the distribution of log 1 k appears to be gaussian with a mean of -17. and a width of 1..