13 Richardson 934 11 General Account gross land. The traps were well distributed among the different species of each of these habitats. The following is a description of the habitat and the catch of each trap. 1.- Set at the edge of a pool under the brush. There was dense cover of thick brambles and creek dogwood and some oak for a canopy. It was on the edge of this at the pool side where the trap was set. Cought a Peromyscus californicus californicus. 2.- In a similar habitat to the above but rather more in the open and nearer running water. Trap opening. 3.- Trap set in dense soft chaparral similar to no. 1 with the exception that there was no water within 10 ft. There was a mass of litter under the chaparral. Trap opening. 4.- Trap set in soft chaparral up on a bank. Tight