of Minnesota and of the western shores of Lake Superior. Previous 

 to that time he had published a geological report on Chippewa Falls, 

 Wisconsin (54 pages), and a description of an Echinoderm (3 pages). 



In "55 he published three articles C34 pp.) on fossils and m 57 an 

 "Abstract of Report on Illinois Coal," with geological map of Illinois. 

 (106 pp.) 



For full list see below.* 



Norwood began his work July 29, 1851, and in the fall of the year 

 employed two young men as assistants. One of them, Anthony Var- 

 ner, died shortly after; but the other, A. H. Worthen, was connected 

 with the work for many years, and at his death was one of the most 

 widely known geologists in the State. 



Norwood considered it to be of prime importance to assemble ma- 

 terials with which to work, and for this end began to form a museum. 

 He says, "a. rich and extensive collection of minerals and organic re- 

 mains was made during that season (1851) and the ensuing winter was 

 devoted to arranging them."f 



Collecting was continued so vigorously in '52 that in '53, Norwood 

 says (ibid p. 12) : "The collection of rocks, minerals and organic re- 

 mains made for the State is large and valuable. For the magnificent 

 collection of fossils made during the survey, it is particularly indebted 

 to Mr. Worthen, whose industry and zeal cannot be too highly praised." 



In confirmation of his opinion that as far as carboniferous fossils are 

 concerned the collection is 'unequalled in this country,' Norwood pre- 

 sents a letter^ from D. D. Owen,§ dated New Harmony, Indiana, Jan. 

 19, 1853, in which Owen says: 



"Respecting the collections made on the Illinois Survey, which I have in- 

 spected, I have to state that I consider it the finest collection ever made in 

 the same length of time, on any survey that has come within my notlca. 

 * * * The collection is both rich in minerals and fossils; some of rare 

 beauty and perfection » * * _" 



* 1846. J. G. Norwood and D. D. Owen. Description of Echinoderm from St. 

 liOuis. 



Am. Jour, Science (2) Vol. II, p. 225-8. 



1847 — and Owen, D. D. Eesearches among the Protozolc and Carboniferous rocks 

 of Central Kentuclty, etc. 



Abstract Am. Jour. Science, 23 series. Vol. 5, pp. 268-269. 

 1848 — and Owen, D. D. (Devonian fossils near the falls of the Ohio.) 



Boston Soc. Nat. Hist. Proc. Vol. 2, p. 116. 



Norwood, J. G. Report of a Geological Eeconnaissance of Chippewa, Wisconsin ; 

 pp. 73-129, 30th Cong., 1st Sesa., Senate Ex. Doc. No. 57, Washington. 



1852. Geology of Minnesota and Shores of Lalie Superior ; Geological Survey of 

 Wisconsin, Iowa and Minnesota, by D. D. Owen, pp. 213-418, plates, Philadelphia. 



1855. J. G. Norwood and H. Pratten. Notice of Product! in Western States. 



Jour. Acad. Nat. Sci., Philadelphia. (2) Vol. Ill, pp. 5-22. 



Notice of Chonetes. 



Journal Acad. Nat. Sci., Philadelphia, Vol. I, p. 23-32. 



Notice of Fossils from Carboniferous. 



Jour. Acad. Nat. Sei., Philadelphia, Vol. Ill, pp. 71-77. 



1S.'57. Abstract of a report on Illinois coal, 93 pages, 5 plates, map, Chicago, 

 Illinois Oeol. Survey. 



1860. Discovery of Permian Rocks at LaSalle, 111. 



St. Louis Acad. Sci. Trans., Vol. I, pp. 115-116. 



1866. Norwood, J. G. Report on Rosiclare lead mines Geo. Sur. 111., Vol I 

 pp. 366-.S72, plates, Chicago. ' ' 



1874. Abstract of notes on Madison county. Geo. Sur. Missouri, report 1873-74 

 Vol. I. pp. 371-379. Jefferson City. 



t Norwood, "Report of Progress of the State Geological Survey," 1853, p. 6. 



t Ibid. 



S D. D. Owen, the well known author of many geological papers ; geologist on 

 Indiana survey, 1837-45; on survey of Wis., Minn, and Iowa, 184.S; State Geologist 

 Ark., 1857. 



