THE AMERICAN MUSEUM JOURNAL 



ment during his life. This species, figures of which appear on 

 page II, has bright metahic green forewings and a brassy -black 

 thorax. The beetle lives in the dense evergreen forests which 

 cover the summits of the Black Mountains, and its larva feeds in 

 the wood of the balsam-fir. Among other rareties brought back 

 are several species of the genus Cychnis. These beetles, one of 

 which is figured on page 1 1 , devour live snails for food . 



THE ARCH.^OLOGICAL EXPEDITION TO THE 

 COLUMBIA VALLEY. 



RCH.^OLOGICAL explorations of the Jesup North 

 Pacific Expedition were carried on in 1897 b}^ Mr. 

 Harlan I. Smith in the Thompson and Eraser 

 River Valleys of southern British Columbia; and 

 in 1898-99 in the shell-heaps along the coasts of 

 British Columbia and Washington. In continuance of the gen- 

 eral archaeological reconnoissance thus begun in the Northwest, 

 the Columbia Valley was chosen as the field for research during 

 the field season of 1903. The region is exceedingly dry and sup- 

 ports no trees except in the river bottoms, or where irrigation 

 has been successfully prosecuted. The country has come to be 

 known for its production of fruit, hops, hay and wheat raised by 

 means of irrigation. 



The Museum already had some heterogeneous collections 

 from the. Columbia Valley in the vicinity of The Dalles and Port- 

 land which indicated that the prehistoric culture of the region 

 was different from that of either the coast of Washington or the 

 Thompson River country. The latter lies immediately to the 

 north of the Yakima Valley, which was chosen as the base of 

 operations for the new investigations. It was thought that by 

 working in the Yakima Valley the boundary between the culture 

 of The Dalles and that of the Thompson River region might be 

 determined. The material however discovered by the expedi- 

 tion seems to prove that the Yakima Valley was inhabited by 

 people having a culture which previously had been unknown to 

 science. 



