July 5, 1895.] 



SCIENCE. 



23 



vision of the Archaean of the Minnesota 

 Survey, which would correspond with the 

 Upper Algonkian of the U. S. Geological 

 Survey. The gold occurs (1) in segregated 

 veins, (2) in fissure veins and (3) in fahl- 

 bands. 



The segregated veins seem to resemble in 

 all respects the veins which carry the greater 

 part of the gold in the Appalachian region, 

 at least, from North Carolina to Alabama. 

 The quartz of these veins in lenticular 

 masses is disposed in irregular belts from 

 one to ten or more feet in width, which are 

 roughly parallel with the lamination of the 

 enclosing slates, and it is often the case 

 that the gold is also found in the quartzose 

 rock immediately enveloping the lenses. 

 This agrees well with what has been noticed 

 in the Southern Appalachian iields; and in 

 the prospects of the Kainy Lake area as a 

 gold-producing region there is also a close 

 agreement with what has recently been 

 given out as the conclusion of Prof. Becker 

 regarding the Southern Appalachians, viz., 

 that while the winning of the gold will 

 probably never be of the nature of a bonana, 

 yet it will, if properly managed, yield a 

 good interest upon the money invested. 

 Apart from the gold-bearing veins, the re- 

 sources of this region most to be counted 

 upon for future development are (1) the 

 excellent farming lands, (2) the large bodies 

 of good timber, (3) the large water power 

 and (4) the probability of the existence of 

 valuable deposits of iron ore. 



Part IV. is a well considered paper by 

 W. E. Hoag, on the Advantages to be De- 

 rived from a Topographic Survey of the 

 State. In Part V. Professor Winchell gives 

 a historical sketch of the Discoveries of the 

 Mineral Deposits of the Lake Superior Re- 

 gion, including some interesting details of 

 the prehistoric mining in the copper regions. 

 In this sketch attention is called to the im- 

 portant fact that the majority of the metal- 

 liferous belts were discovered by ofl&cial 



geologists in the performance of their as- 

 signed duties. Among these discoverers 

 the name of Dr. Douglass Houghton stands 

 preeminent. 



Part VI., by Mr. Warren TJpham, is in 

 continuation of an investigation published 

 in the preceding report of this survey, and 

 relating to the glacial lakes which are now 

 succeeded by the present great Laurentian 

 lakes. The author brings forward evidence 

 to prove the pre-glacial elevation of North 

 America, the late glacial subsidence, and 

 the reelevation bj^ a wavelike epeirogenic 

 uplift. The measurement of post-glacial 

 time by the recession of Niagara Falls is 

 also fully discussed, the conclusion reached 

 that the estimate of 7,000 years, made by 

 Gilbert in 1886, accords best with the facts 

 observed. The paper ends mth a tabular 

 presentation of the epochs and stages of the 

 glacial period, using the nomenclature pro- 

 posed by Professor Chamberlin. 



The rest of the volume is devoted to notes 

 upon some Minnesota minerals, to chemical 

 analyses, lists of rock samples, etc., without 

 general interest, except some notes by Pro- 

 fessor Winchell upon the bedded and banded 

 phase's of the gabbro of northeastern Min- 

 nesota. Eugene A. Smith. 



Univeesity of Alabama. 



folk-tales. 



Le Folklore Dans Les Deux Mondes. Par Le 



CoNTE H. DE Charencey. Paris, C. 



Klincksieck. 1894. Pp. 424. 



Louisiana Folk-Tales. In French Dialect 



and English Translation. Collected and 



Edited by Alcee Fortiek, D. Lt. 



Houghton, Mifiain & Co. 1895. Pp. 122. 



The work of M. de Charencey forms the 



twenty-third volume of the ' Actes de la 



Societe Philologique,' a society, by the by, 



which in its various issues presents a great 



deal of value on American languages. The 



author, well known for his numerous and 



erudite writings, here takes up a series of 



