REVIEWS 87 



past four years by the Lake Superior Division of the United States 

 Geological Survey. 1 The results of this work have not been published 

 and any reference to the conclusions reached would be premature. In 

 general it may be stated that now, as in the past, there is divergence 

 in the conclusions reached by the Minnesota Survey and by the United 

 States Geological Survey concerning the position and importance of 

 the unconformities, correlation of series, and nomenclature. 



C. K. Leith. 



The Nonvegian Polar Expedition, iSgj to i8g6. Scientific Results. 

 Edited by Fridtjof Nansen. Vol. I. Longmans, Green, 

 & Co. 



The object of the report of which this is the first volume is stated 

 in the preface to be "to give in a series of separate memoirs a complete 

 account of the scientific results of the Norwegian North Polar Expedi- 

 tion of 1893 to 1896." The first volume contains the following 

 papers: "The Fram," 16 pp. with three plates; "The Jurassic Fauna 

 of Cape Flora, Franz Josef Land," by J. F. Pompeckj, with a "Geo- 

 logical Sketch of Cape Flora and its Neighborhood," by Fridtjof 

 Nansen, 147 pp. with three plates ; "Fossil Plants from Franz Josef 

 Land," by A. G. Nathorst, 26 pp. with two plates ; "An Account of the 

 Birds," by Collett and Nansen, 53 pp. with two plates; "Crustacea," 

 by G. O. Sars, 137 pp. with thirty-six plates. 



The fossil fauna brought back from Cape Flora was collected by 

 Nansen during the period of his stay with Jackson at Elmwood, Cape 

 Flora, Franz Josef Land. The collection was studied by J. F. Pom- 

 peckj, whose descriptions of the fossils constitute the second part of 

 the volume. Collections from the same localities secured by the 

 Jackson-Harmsworth expedition were examined and described by Mr. 

 E. T. Newton, but the conclusions reached by Pompeckj and by New- 

 ton as to the age of the strata are somewhat at variance. 



The condition of preservation of the fossils is poor, and many 

 species, particularly of lamellibranchs, could not be identified even 

 generically. The collection shows that a fauna of at least twenty-six 

 different species occurs in the Jurassic sediments about Cape Flora. 



'The reports on this area in preparation by the survey are: Lake Superior Iron 

 Ores, to appear in the Twenty-first Annual Report ; Monograph on the Vermilion Iron 

 Bearing District of Minnesota, and Monograph on the Mesabi Iron District of Minne- 

 sota, 



