'rKlLomrKS OF IHK ChAZV I-IMKSIONK. 383 



1847. Talcontology of \e\v \'oik, voluiiie i, Jiage 259, jilate 67, figures 6 n, 6 />. 

 1902. Hulletin of Ainericaii I'aleoiUology, voIume3, miniher 14, ]ilate5, figure 12. 



The following are the principal works in which Chazy trilobiles are 

 figured, listed or describeti. 



]842. I'lnnions, E. Re[)i>rt on the (Jeology of the Second District of New 

 \'ork, page 382. 



Gives geology of the region along the western border of Lake Chaniplain, 

 and mentions fossils. 

 1847. Hail, James. Description of the organic remains of the lower division of 

 the New \'ork System. Paleontology of New \'ork, volume I, pp. 14-37, 

 plates 4 to 7. 



Describes seven trilobites. 

 1859. Billings, E. Descriptions of some new species of Trilobites from the 

 Dower and Middle Silurian rocks of Canada. Canadian Naturalist and 

 Geologist, volume 4, pages 367-383. 



Describes and figures three species and mentions two more. 

 1859. Billings, E The Fossils of the Chazy Limestone, with descriptions of 

 new species. Canadian Naturalist and Geologist, volume 4, pages 426-470. 

 Describes two species and figures another. 

 1861. Geology of Vermont, with special articles, contains description of .^w/j'.v 



Iialli, by Billings. 

 1863. Logan, Sir William E. Geology of Canada. Chapter 8, figures 44-69. 



Gives figures and distribution of Chazy fossils, including trilobites. 

 1865. Billings, E. Paleozoic Fossils of Canada, volume i. 



Describes nine species and discusses the trilobite fauna of the Chazy. 



1888. Brainerd, E., and .Seely, H. AL The original Chazy Rocks in New 

 York. American Geologist, volume 2, pages 323-330. 



List a few fossils from section at Chazy, N. Y. 



1889. Miller, .S. .\. North American Geology and Paleontology, page 36. 

 Gives figures of Amphion canadensis, Jllicnus t^lobostts and Sphirrexocltiis 



parvus after Billings. 

 1891. Brainerd, E. The Chazy of the Champlain Valley. Bulletin of the 

 Geological Society of America, volume II, page 300, 1891. 

 Gives lists of fossils found, including trilobites. 

 1897. Dana, J. D. Manual of Geology. Fourth edition, page 501. 



Gives copy of Billing's figure of pygidium of Amphion canadensis, and 

 a small list of trilobites, with distribution. 

 1897. Clarke, J. M. The Lower Silurian Trilobites of Minnesota. Paleontol- 

 ogy of Minnesota, volume 3, part 2. 



Mentions Chazy trilobites in schemes of classification, and in comparison 

 with Trenton species. 

 1899. Report of the Geological Survey of Canada, section J, page 139. 



Gives lists, pre[)ared by Dr. H. M. Ami, of Chazy fossils found in the re- 

 gion south and east of Montreal. 

 I901. Ruederman, R. The Trenton Conglomerate of Rjsedorph Hill and its 



