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H. A. Nicholson. On the Grapt. of the Coniston Flags etc. 

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H. A. Nicholson. The Graptolites of the Shiddaw Series. 

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H. A. Nicholson. On some new Species of Gvapt. Ann. & 

 Mag. Nat. Hist. 4 Ser. Vol. 4. 



F. 3rCoy. Geol. survey of Victoria. Vict. org. remains. 

 Dec. I. & II. London 1874. " 



B,. Etheridge, jun. Observations on a few Grapt. fr. the Lower 

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Oh. Lapivortli. On the Geol. Distrib. of the Rhabdoph. Ann. 

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 P. 333 & 432. Vol. V. P. 45, 273 & 358. Vol. VL P. 16 & 185. 



Ch. LapivortJi. On the Grapt. of County Down. Proceed- 

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Ch. Lajpworth. On new British Grapt. Ann. & Mag. Nat. 

 Hist. 5 Ser. Vol. V. P. 149. 



Ch. Lapivorth. C. Hopkinson. Descript. of the Arenig and 

 Llandeilo Rocks of the St. David's. Quart. Journ. Geol. Soc. 

 Vol. XXXI. P. 631. 



W. Salter. Note on the Skiddaw Slates Fossils. Quart. Journ. 

 Geol. Soc. Vol. XIX. P. 135. 



J. W. Salter. Descript of some Graptol. from the South of 

 Scotland. Quart. Journ. Geol. Sol. Vol. VIII. P. 388. 



J. Barrande. Grapt. de Bohème. Prague 1850. 



H. B. Geinits. Die Versteinerungen der Grauwf. in Sachsen. 

 I. Graptolithen. Leipzig 1852. 



W. Scharenherg. Ueber Graptolithen etc. Breslau 1851. 



K. A. Zittel. Handbuch de Palaeontologie. Bd. I. Abth. I. 

 Müchen & Leipzig 1880. 



8. A. Tullberg. Några Didymograptusarter i undre grapto- 

 litsk. vid Kiviks-Esperöd. Geol. För. Förh. 1880—81. 



S. A. Tullberg. Tvenne nya graptolitsslägten. Geol. För. 

 Förh. 1880—81 No. 63. Bd. V. No. 7. 



L. Törnquist. Studier öfver Retiolites. ib. 



L. Törnquist. Om några graptolitarter från Dalarne. Geol. 

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Leider war es mir unmöglich, die wünschenwerthen Bände 

 (1873 und 1876) des Geol. Mag. sowie M'Coy. Victor org. re- 

 mains Dec. V und Geol. Report of Vermont zu erlangen. 



