innLlOGKAPHY OF N. H. WINCIIELL 39 



Mining (in Minnesota). Minn. Blue Boole, pp. .306-.308. 1891. 



Alexander Winchell. Am. Geol., vol. vii. p. 19-5. 1891. 



The orenitic hypothesis. Am. Geol., vol. viii. pp. 110-114. 1891. 



The International Congress of Geologists. Washington meeting. Am. 



<»eol.. vol. viii. pp. 24.3-2.58. 1891. 

 Jean N. Nicollet. A sketch of his life. Am. Geol., vol. viii, pp. 34.3-352. 



1891. 

 Recent studies in spherulitic crystallization. Am. Geol., vol. viii. pp. 



387-392. 1891. 

 1892. The nineteenth annual report of the Geological and Natural History 



Survey of Minnesota for 1890. 255 pp. 8vo ; 41 figures and 2 plates. 



Minneapolis, 1892. This report contains : 



Geognostic and geographic observations in the State of Minne- 

 sota (a partial translation of "Geognostische und geographisclie 

 Beobachtungen in Staate Minnesota." Zeit. Gesell. fiir Erd- 

 kunde. Berlin, vol. xii, pp. 266-.320, 1877), pp. 81-121. 

 The geoogy of the iron ores of Minnesota. Trans. Geol. Soc. Australia, 



vol. i, part 14. pp. 171-180. 1892. 

 Memorial sketch of Alexander Winchell. Bull. Geol. Soc. Am., vol. 3, 



pp. 1-13. 1892. 

 Archean eruptive rocks of Finland. Am. (ic^d.. vol. ix, pp. 49-52. 1S92. 

 Alexander Winchell; an editorial trii)ute (witli E. W. Claj'pole). Am. 



Geol., vol. ix. pp. 71-148. 1892. 

 The so-called Laurentian limestones at St. John, New Brunswiclv. Am. 



Geol., vol. ix, pp. 198-200. 1892. 

 New species of Brachiopoda from the Trenton and Hudson River 



groups of Minnesota (with Charles Schuchert). Am. Geol., vol. ix. 



pp. 284-294. 1892. 

 The Kawishiwin agglomerate. Am. Geol., vol. ix, pp. 3.59-368. 1892. 

 An approximate interglacial chronometer (three plates). Am. Geol., 



vol. X. pp. 09-80. 1892. 

 Some problems of the Mesabi iron ore. Am. Geol., vol. x, pp. 109-179. 



1892. 

 The United States Geological Survey. Am. Geol., vol. x, pp. 179-181. 



1892. 

 The topographical map of the United States. Am. Geol., vol. x. ])i). 



.304-310. 1892. 

 The iron-beai-ing rocks of Minnesota. Abstract. Bull. Minn. Acad. Sci., 



vol. iii. pp. 277-280. 1892. 

 isiC!. The twentieth aiiiiual rei)()rt of the Geological and Natural History 



Sui'vey of Minn«'sota for 1891. 344 pp. 8vo ; 12 jilates. Minneapolis, 



189.3. This re|)ort contains: 



'I'lic fr\stalliii(' rocks; some preliminary considcr.il inns .-is \n 



tiieir structui-es and origin, pp. 1-28. 

 Field notes, pp. 29-.34. 

 Oxide of manganese, pp. .321-.322. 

 The Noriaii nt" ihr Xmniwcsl. rrcfatory nofc (<> Bull. 8, Geol. Nat. 



Hist. Sui-\. .Minn., pii. i-x\\i\. IS!).",. 

 Tile geology of Hennepin ('oinity. .Vtwaler's Jlislor.\ of Minneapolis, 



chapter vi. 1893. 



