Murray 1948 Journal July 1 10 mi SE Mesquital, 400± ft, Baja Calif. Traps in the wash caught 2♂, 1♀ Perognathus arenarius, 1♂ Dipodomys meriamii, 1♀ Dipodomys agilis and 1 released. The other traps had 1♂ Dipodomys meriamii, 1♂, 1♀ Perognathus arenarius, 1♂ Dipodomys agilis and 2 released (1♀). One of the arenarius not in the wash was near it, the other was several hundred feet away. A Snagler set on the bank caught 1♂ Neotoma lepida, discarded. Today the fog lifted early and left a boiling hot day. There was a thunderstorm over some hills to the north where a big cumulus cloud forms daily, and we heard it rained a little in San Ignacio. Set 100 live traps, 50 on the usual yucca- ocotillo ground and the other mostly well into one of the areas of small shrubs mentioned previously. About 20 traps from this line extended down a shallow slope which graded into the wash SE of where the bank ran out. The sand here is fairly soft with a slight gravelly crust, and the vegetation still the same as that above. In this vicinity the rabbits abound. Brush rabbits tend to be in the wash, while jackrabbits are almost all up on the flat and grouped within a relatively small area. They are