156 TRANSACTIONS OF THE [MaR. 27 



March 5, where an accident ended the steaniboat voyage. The 

 exploration of the Canon was continued thirty miles farther, 

 then the party returned to IMojave Valley and March 24 the 

 steamboat " Explorer'' was sent back to Fort Yuma. The part}^ 

 with escort left the river, explored the Colorado Plateau some 

 distance, then struck eastward past the San Francisco Mountains, 

 reached Fort Defiance Mslj 22, and returned east via Santa Fe 

 and Fort Leavenworth. Dr. Newberry ever after took great 

 interest in the Moquis tribes with which he became acquainted 

 upon this trip. 



The report of the Ives Expedition was published in 18G1. 

 The geological report covers all the region which Dr. Newbeny 

 traversed from San Diego to Fort Leavenworth, and was the 

 first detailed description of the lower Colorado region.* 



The 3^ear following Dr, Newberry was again in the field as 

 geologist of the San Juan Exploring Expedition, under Capt. J. 

 N. Macomb. This expedition started from Santa Fe about the 

 middle of July 1859, passed up the valley of the Rio Chania, 

 across the continental divide to the head waters of the San Juan, 

 thence into southwestern Colorado and southeastern Utah to 

 near the junction of the Grand and Green rivers, and returned 

 by a circuitous route to Santa Fe in November. On account of 

 the demoralization caused by the war the report on the geolog}^ 

 and paleontology was not published until 1876. It is imj^or- 

 tant to note that it was then printed exactly as written sixteen 

 years earlier. That it should have been published so long after 

 the work was done and subsequent to other work in the region 

 is proof of its value, and of Dr. Newberry's confidence in the 

 accuracy of his own earlier work. 



The outbreak of the war of the rebellion found Dr.Newberry in 

 Washington, in the service of the War Department, with which he 

 had been connected for five years as Assistant Surgeon. In the 

 supreme hour of his country's peril he forsook his scientific work 

 and gave to the nation the benefit of his medical training. On 

 the 14th of June 18GI, he became a member of theU. S. Sanitary 

 Commission and immediately entered heartily into its work. 

 On the first of Sei^tember he resigned from the army and took 

 the Secretaryship of the Western Department of the Sanitary 

 Commission, having supervision of the work in the valley of the 

 Mississippi, with headquarters first at Cleveland but afterwards 

 at Louisville. By correspondence and visitation he " began 

 the work of turning into one great channel the thousand springs 

 of philanthropy and patriotism that were bursting out in ham- 



*In 1853 Jules Mareon had traversed the region on the 35th parallel as geolo- 

 gist of one of the Pacific Railroad exploriuy expeditions. 



