.Memmler 44 Itinerary April 9, Chualar Canyon, Monterey Co., Calif. 750 ft. He first built his Garage it was overrun with Dipodomys on the ground floor. He had to put in a cement floor inorder to get rid of them. He said also that they, the Kangaroo Rats are very fond of grain and gather wheat seeds. April 10, Chualar Canyon 800 ft., Monterey Co, Calif. Jean Boulevard and I set out 170 Museum Special Traps last evening, along the margin of a young grain field. The wheat planting is sharply defined along the edge where it contacts the Artemesia covered hillsides of the surrounding Valley wall. The Artemesia is about 3 or 4 ft. tall with short grass growing beneath it. We had 15 traps sprung with no catch. We caught 29 Reithrodontomys, 13♂, 7♀, 7 alive we let go and a ♂ and ♀ caught together in one trap. We also caught the following: 1♀ Peromyscus truei with no embryos, 7♂ and 8♀ Peromyscus maniculatus, 1 in. ♀ and 1 in. ♂ Microtus and 50♂and 1♀, with no embryos, Perognathus. Three of the Perognathus showed evidence of Predation in the head region. One had considerable cheek pouch content which is labeled 126 ♂ in dry