GRAPTOLITES OF NEW YORK. PART 1 461 



1868 On the Nature and Geological Position of the Graptolitidae. Ann. and 



Mag. Nat. Hist, ser.4, 2 ; 55 

 1870 On the British Species of Didymograptns. Ann. and Mag. Nat. Hifit. 



8er.4, 5:337 



1870 Hopkinson, J. On the Structure and Affinities of the Genus Dicrauograptus. 



Geol. Mag. 7 : 353 



1871 On Dicellograpsus, a New Genus of GraptoLtes. Geol. Mag. v.8, no.l,p.20 



1871 On a Specimen of Diplograpsus pristis with Reproductive Capsules. 



Ann. and Mag. Nat. Hist, ser.l, 7 : 317 



1871 Richter, R. Aus dem thiiringischen Schiefergebirge. Zeitschr. geol. Gee. 23:231 



1872 Hopkinson, J. On the Occurrence of a Remarkable Group of Graptolites in the 



Areiiig Rocks of St David's, South Wales. Geol. Mag. 9 : 467 

 1872 Nicholson, H. A. A Monograph of the British Graptolitidae 

 1872 AUman, G. J. A Monograph of the Gymnoblastic or Tubularian Hydroids. 



London 



1872 On the Morphology and Affinities of Graptolites. Ann. and Mag. Nat. 



Hist. ser. 4, 9 : 364 



1873 Hopkinson, J. On some Graptolites from the Upper Arenig Rocks ot Ramsay 



Island, St David's. Geol. Mag. v.lO, no.ll, p.518 

 1873 Dames, W. Beitrag zur Kenntniss der Gattnng Dictyonema Hall. Zeitschr. d. 



(Jeutsch. geol. Gesellsch. 25 : 383 

 1873 Nicholson, H. A. On some Fossils from the Quebec Group of Point Levis, 



Quebec. Ann. and Mag. Nat. Hist, ser.4, 11 : 133 



1873 Lapworth, C. Notes on the British Graptolites and their Allies. 1— On an 



Improved Classification of the Rhabdophora, pt 1, pt 2. Geol. Mag. 10 : 500,555 



1874 Etheridge, R . jr. Observations on a few Graptolites from the Lower Siluric Rocks 



of Victoria, Australia, etc. Ann. and Mag. Nat. Hist, ser.4, v.l4 



1874 McCoy, F. Geological Survey of Victoria. Prodr. Pal. Victoria, Dec. 1, p.3 

 1875 Dec. 2, p. 29 



1875 Hopkinson, J. & Lapworth, C. On the Graptolites of the Arenig and Llandeilo 



Rocks of St David's. Quar. Jour. Geol. Soc. 31 : 631 



1875 Nicholson, H. A. On a New Genus and some New Species of Graptolites from 



the Skiddaw Slates. Ann. and Mag. Nat. Hist, ser.4, 16 : 269 



1876 McCoy, F. On a New Victorian Graptolite. Ann. and Mag. Nat. Hist. 8er.4, 



18:128 



