Cruksaon 1934 Parker 10 mi. east of Quartzite, yuma Co., Ariz. 28 5 mi. south of Parker which had a stretch of unburned tules about 100 yds. long; tules dry with no evidence of new shoots coming up; bottom of ditch with wide deep cracks. Found a few runways and some droppings. Set 10 rat traps in runways. Looked at gopher settings, had 2 gophers; setting filled in on 22nd filled again; one untouched. Reset filled one and made 12 more settings. Set 36 medium sized traps in sand dunes 3 mi. east of Parker; vegetation scattered creosote and galleted Feb. 24. Took up 36 traps set in sand dunes, 9 sprung mostly by large Dipodomys judging from tracks, no captures. Took up 10 rat traps, caught one Neotoma alligula, one Peromyscus tail; 3 other traps sprung. Went to 12 Mile Slough south of Parker; it contained deep water; banks steep, only vegetation willows and arrowweed, no evidence of cotton rats or place suitable for them; followed up drainage ditches along in region south of Parker without finding any tules. Took up gopher traps, one setting filled in; took 13 gophers in remaining 12 settings. Feb. 25. Finished gophers taken on 24th. Out of three Sigmodon taken by Miss Kellogg. Feb. 26. Moved from Parker to 10 mi. east of Quartzite site via Bouse and Yuckelburg. Made camp 200 yds. south of highway on rocky flat between two small