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SCIENCE 



[N. a Vol. XXXVI. No. 921 



necticut Agricultural College, has been 

 elected professor of poultry husbandry. 



Mr. E. E. Garrett, of the University of 

 Oklahoma and the Oklahoma Geological Sur- 

 vey, has been appointed assistant in mineral- 

 ogy at Northwestern University. 



Dr. John Sundvall, of Baltimore, has been 

 appointed professor of anatomy, and Mr. 

 Lindsey S. Milne, M.B., Eussell Sage Foun- 

 dation, has been appointed professor of med- 

 icine, in the University of Kansas. 



The follovcing changes in the department 

 of anatomy of the University of Pittsburgh 

 Medical School are announced: Herbert Hays 

 Bullard, A.B., A.M. (Missouri), Ph.D. (Tu- 

 lane), for the past three years instructor in 

 anatomy in Tulane University Medical De- 

 partment, to be instructor in anatomy and 

 neurology, vice Dr. Edgar Davidson Cong- 

 don, resigned; Harry Eyerson Decker, A.B. 

 (Princeton), M.D. (Columbia), to be in- 

 structor in anatomy; promoted from a demon- 

 stratorship. 



Mr. E. J. Kean, lecturer in civil engineer- 

 ing at Leeds University, has been appointed 

 lecturer in machine designing and experi- 

 mental engineering at McGill University. 



Dr. Ashley Watson Mackintosh has been 

 appointed regius professor of medicine in the 

 University of Aberdeen, in the place of Pro- 

 fessor David White Pinlay, who has resigned. 



DISCUSSION AND COSBESPONDENCE 



A KEY to basin-range STRUCTURE IN THE 

 CRICKET RANGE, UTAH' 



To THE Editor of Science: Basin-range 

 structure has been the subject of prolonged 

 discussion, but the areas affording clear and 

 unobliterated evidence of the movements to 

 which the ranges have been subjected are 

 comparatively rare. During a reconnaissance 

 of Utah made the summer of 1905 the vsrriter 

 traversed the Cricket Eange and mentally re- 

 served to future leisure the more careful study 

 of the structure he observed. Of this there 



* Published by permiBsion of the director of the 

 U. S. Geological Survey. 



seems to be no immediate prospect and the 

 following information is communicated in 

 order that it may be available to any geologist 

 who may be fortunate enough to get within 

 striking distance of the place. 



The Cricket Eange, locally known as the 

 Beaver Eiver Eange or the Beaver Mountains, 

 lies near the center of Millard County, Utah, 

 and is northwest of the town of Blackrock on 

 the San Pedro, Los Angeles and Salt Lake 

 Eailroad, 185 miles southwest of Salt Lake 

 City. The southern part of the range (just 

 west of Blackrock) is composed of several 

 parallel and more or less uniform north-and- 

 south ridges a few hundred feet high sepa- 

 rated by comparatively smooth valleys a half 

 mile or more in width. In each of the ridges 

 is exposed practically the same succession of 

 Middle Cambrian strata, dipping a little north 

 of east at angles of from 20 to 30 degrees, and 

 the group of ridges and valleys appears to 

 duplicate in miniature the essential features 

 of the entire Great Basin province. In the 

 vicinity of Cricket Spring, which as near as 

 can be remembered is not much over ten miles 

 from Blackrock, the main part of the range 

 begins and it is here composed, in large part 

 at least, of Cambrian rocks like those of the 

 southern ridges, but raised to considerably 

 higher elevations and intersected by several 

 north and south faults whose actual contacts 

 may easily be observed. For example, the 

 quartzites which form the base of the section 

 on the west side of the range are repeated in 

 the second canyon east of the spring. In this 

 massive part of the range there is no doubt as 

 to the presence of normal faults with the 

 downthrow side to the west; it seems prob- 

 able that the immediately adjacent succession 

 of ridges to the south is to be attributed to 

 similar causes, and that an examination of 

 the zone between these two physiographic 

 units will demonstrate their structural con- 

 tinuity. This easily accessible, though ap- 

 parently overlooked, locality may thus prove 

 to be a key to the Basin-range type of struc- 

 ture. 



Lancaster D. Burling 



Smithsonian Institution 



