MAMMALS OF THE MEXICAN BOUNDARY. 11 



carefully the hills and plains in the vicinity of the camp, but making 

 no extended trips. 



May 16 to 18, 189£. — Moved to Mosquito Springs, Chihuahua, 

 Mexico, near Monument No. 46, on May 15, remaining there until 

 May 18. Collections were made principally on the Mexican side of 

 the meridian ( 108°, 12', 29".64, West) forming the third boundary 

 section. 



May 18 to 19, 1892. — Accompanied by Lieut. Francis G. Irwin, jr.. 

 Second Cavalry, Mr. F. X. Holzner, and a section of the pack train, 

 rode to Big Hatchet Mountains, in Grant County, New Mexico, camp- 

 ing on a shoulder of the main Hachita Peak, in the pinon-pine zone, 

 at the altitude of about 1,800 meters (5,905 feet), and proceeding 

 thence on foot to the summit (altitude 2,545 meters or 8,350 feet). 

 On May 19 I again climbed to the summit and examined traps set on 

 the preceding day for mammals, after which we returned to Mosquito 

 Springs. A supply of water was left in kegs for Mr. Holzner, who 

 remained until May 25. 



May 20 to June Jf, 1892. — On May 30, in company with Lieutenants 

 Gaillard and. Irwin, rode to White Water, Chihuahua, Mexico (near 

 Monument No. 61), and camped there for the night, proceeding on 

 the following day to the San Luis Springs (now known as Lang's 

 Ranch) , where we camped and spent the first day of June in explor- 

 ing the west side of the San Luis Mountains. On June 2, we retraced 

 our steps -to White Water, returning to the main camp at Dog Spring, 

 New Mexico, on June 3. Although made for the purpose of locating 

 future camps where wood, water, and grass were to be had, this was 

 a successful hunting trip, two Arizona deer (the first obtained), 

 seven antelope, two black timber wolves, two turkeys, and a variety 

 of small game and specimens having been killed and brought in by 

 the three officers. 



June Ji- to 12, 1892. — In camp at Dog Spring. From this camp 

 visits were made to the "Lower Corner" Monument (No. 53), at the 

 eastern extremity of the fourth section of the boundary formed by 

 the parallel of 31° 20' north latitude, and the Dog Mountains to the 

 northward, of which Emory Peak is the most prjominent, were quite 

 thoroughly explored. Many plants were found flowering at this sea- 

 son, and the type specimen of a new species of deer {Odocoileus 

 crooki) was killed by the writer. 



Jtme 1^ to 17, 1892. — On June 13 our camp was removed to White 

 Water (near Monument No. 61), which remained our base camp un- 

 til June 29. From here the East and West Playas valleys or plains 

 and the eastern slopes of the San Luis Mountains, the highest crossed 

 by the Mexican Boundary Line, were explored. Our camps were well 

 supplied with game, which was very abundant. At Lieutenant Ir- 

 win's camp, at San Francisco Water, antelope were shot by troopers 



