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;s XVII, XVIII, XIX, et: 



1 Tilesia or Pleurogadus. Ex' 

 Ouachita Mountain System i 



Jones, T K.— Contributions to C nadi:m Min Paleontology, Part III. Can. 

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Knowlton, F. H.— Directions for Collecting Recent and Fossil Plants. Pt. B. 

 tall. U. S. Nat. Mus., No. 39. From the Museum. 

 Lucas, F. A.— Notes on the Preparation of Rough Skeletons. Pt. C. Bull. U. S. 



Lewis, S. H.-Cup-Stones Near Old Fort Ransom, N. D. Ext. Am. Nat., May, 

 1891. From the author. 



McCarthy, G.— Some Injurious Insects. Bull. No. 78- North Carolina Exp. 

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Mercerat, A.— Notas Sobre la Paleontologia de la Republica Argentina. Sinop- 

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Nehring, A.— Ueber die Gebissentwicklung der Schweine Insbesondere uber Ver- 

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Necix, A.-Sopra Alcuni Fossili Raccolti nei Calcari Grigi dei Sette Comuni,1891. 



Ogilby, J. D.-Hand-List of Australian Mammals. Advance Copy, July, 1891- 



