18 BULLETIN 56, UNITED STATES NATIONAL MUSEUM. 



Line, and traveled to near Arivaca, where camp was made for the 

 night. We reached the camp of the Monument-Builders at Warsaw 

 Mills December 1, and camped there until December 7, exploring 

 the Pajaritos Mountains. Trips were made from this camp to Bear 

 Valley and Oro Blanco Picacho. 



December 7 to 10, 1893. — On December 7 rode to Arivaca and 

 thence to a ranch in the Tres Bellotas Canyon of the Pajaritos 

 Mountains, where we remained until the next day, when we returned 

 to Arivaca, camping for the night on Arivaca Creek, a few miles 

 beyond the town. Proceeded, December 9, to La Osa, near Monu- 

 ment No. 140, and made camp. This was our base of operations 

 until December 28. 



De'cemher 11 to 28, 1893. — December 11 drove to Tucson, Arizona, 

 accompanying Colonel Barlow, who had fractured his forearm. The 

 return trip occupied two days. The intervening night was spent at 

 La Ventana Ranch. From December 14 to 28 we remained at La Osa 

 making collections. 



Decemher 28, 1893, to January 8, 1894. — On the morning of De- 

 cember 28 we broke camp at La Osa and moved west to La Ventana, 

 where we camped, pursuing our journey on the following day to 

 Pozo de Luis, a few miles south of the Boundary, in Sonora, Mexico, 

 near Monument No. 152. Collecting was carried on at Pozo de 

 Luis until the 8th of January. 



January 8 to 25, 1894. — On January 8 we again took up our course 

 westward, camping for one night at the Papago Indian village at 

 the point of the Nariz Mountains, near Monument No. 159. On the 

 following day, after exploring the Nariz Mountains, the journey 

 was resumed, and, passing by the Santa Rosa Mountains (Monu- 

 ments Nos. 162 and 163), we arrived at the Mexican town of Sonoyta, 

 in Sonora, a few miles south of Monument No, 168, on the night of 

 January 9. From January 9 to 25 we gathered large collections at 

 Sonoyta and made several excursions to the Mexican town of Santo 

 Domingo, on the Sonoyta River, nearly south of Monument No. 171. 



January 25 to February 8, 1894- — We left the camp on the Sonoyta 

 River January 25 and moved to Quitobaquita, at Monument No. 172, 

 camping just north of the Boundary until February 8. 



February 8 to 14, 1894- — Leaving Quitobaquita on the morning of 

 February 8, we followed the Sonoyta River westward to Agua Duke, 

 where we left the river and proceeded westward to La Represo, 

 (Monument No. 179) where we camped for the night. Making an 

 early start on the morning of the 9th, I rode from La Represo to 

 Tule Wells, about 48 kilometers (30 miles). The first 6 kilometers 

 (4 miles), to Monument No. 180, was across a plain covered with 

 the creosote bush. At Monument No. 180 is a bare flat 3 kilometers 



