328 The National Geographic Magazine 



The second part}' in central California 

 will be in charge of Mr E. T. Perkins, 

 who will have as his principal assistants 

 Messrs A. I. Oliver and W. V. Hardy. 

 This party will outfit at Visalia and will 

 survey the Kaweah or Three Rivers 

 quadrangle, an area of nearly 1,000 

 square miles, including the headwaters 

 of the principal tributaries of the Tulare 

 River. 



In southern California there will be 

 two parties. One of these parties, under 

 Mr W. T. Turner, with Mr S. N. Stoner 

 as his principal assistant, will continue 

 the work which has been going on for 

 several years in the Mount Pinos and 

 Zaca Take and Santa Ynez Forest Re- 

 serves. 



The other party, under Mr J.E. Rock- 

 hold, with Mr E. R. Childs as his prin- 

 cipal assistant, will complete the work 

 begun during the past field season in 

 the vicinity of San Diego, thus finish- 

 ing the mapping of practically all of the 

 thickly inhabited portion of southern 

 California. 



Precise spirit-leveling will be contin- 

 ued by a party under Mr C. H. Semper. 

 This party will first complete a gap in 

 the line which was begun during the 

 last field season at a tidal connection at 

 Benicia and carried through the San 

 Joaquin Valley and across the Tehachapi 



Mountains, so as to make a junction 

 with spirit levels previousl}' run in 

 southern California. After this work 

 is completed the party will go north to 

 the vicinity of Sacramento and com- 

 mence another precise line which will 

 have its ultimate termination at Port- 

 land, Oregon. In connection with this 

 line iron bench-mark posts will be es- 

 tablished along the line of the Southern 

 Pacific Railroad at intervals of about 

 three miles, on which will be stamped 

 the elevation to the nearest foot above 

 sea-level. 



In the fall, after it becomes too late 

 to work in the northern states or the 

 high Sierra, two large parties will com- 

 mence work along the Colorado River, 

 one outfitting at Yuma and the other 

 at Needles. This work is undertaken 

 with a view of determining the prac- 

 ticability of utilizing the waters of the 

 Colorado River, which at present are 

 wasted into the ocean, for the purpose 

 of irrigating the vast tracts of desert 

 lands in California and Arizona adja- 

 cent to the river. 



Eater in the season it is also contem- 

 plated to do certain preliminary work 

 looking eventually to the topographic 

 mapping and geologic investigation of 

 the Coalingua, Bakersfield, and McKit- 

 rick oil fields. 



GEOGRAPHIC NOTES 



NEW KEY TO THE REPORTS OF THE 

 U. S. GEOLOGICAL SURVEY 



THE U. S. Geological Survey has 

 just issued, in Bulletin No. 177, 

 a catalogue and index of its publica- 

 tions. This compilation has been made 

 necessary by the increase in the number 

 of the publications since the last cata- 

 logue was published in 1893 and by the 

 need of a convenient classification. 



The first part of the compilation is 

 composed of notices of all the Survey's 

 publications from its inception to date; 

 the annual reports, monographs, bulle- 

 tins, water supply, and irrigation papers, 

 the volumes of the old series of mineral 

 resources, geologic atlas folios, topo- 

 graphic atlas sheets, special maps, and 

 miscellaneous publications. 



The second portion of the volume is 

 an index, alphabetically arranged, com- 



