CCELENTEKATA. G. Graptolites. 109 



NICHOLSON, H. A. On the Graptolites of the Coniston Flags ; with Notes on the 

 British Species of the genus Graptolites. Journ. Geol. Soc. London, Vol. xxiv. 

 pp. 521 545, 186 3. (2 pi.) Phil. Mag. Vol. xxxvn. p. 155, 1869. [563 



NICHOLSON, H. A. On the Nature and Systematic Position of the Graptolitidce. 

 Eep. Brit. Assoc. : Trans. Sect. 1867. pp. 7196, 1868. [564 



NICHOLSON, H. A. Notes on Helicograpsus, a new genus of Graptolites. Ann. 

 and Mag. of Nat. Hist. Ser. 4, Vol. n. pp. 2326, 1868. [565 



NICHOLSON, H. A. On the Nature and Zoological Position of the Graptolltidce. 

 Ann. and Mag. of Nat. Hist. Ser. 4, Vol. i. pp. 5561, 1868. (1 pi.) [566 



NICHOLSON, H. A. On the Occurrence of the genus Ptilograpsm in Britain, 

 with Notes on the Ludlow Graptolites. Ann. and Mag. of Nat. Hist. Ser. 4, Vol. i. 

 pp. 238242, 1868. [567 



NICHOLSON, H. A. Graptolites of the Moffat Slates. Geol. Mag. Vol. iv. pp. 135, 

 136, 1867. [568 



NICHOLSON, H. A. On Graptolites. Geol. Mag. Vol. iv. pp. 238, 239, 1867. [569 



NICHOLSON, H. A. On the British species of the genera Climacograpsus, Diplo- 

 grapsus, Dicranograpsus and Didymograpsus. Phil. Mag. Vol. xxxvm. p. 402, 1869. 



[570 



NICHOLSON, H. A. Note on the Distribution in Time of the various British 

 Species and Genera of Graptolites. Ann. and Mag. of Nat. Hist. Ser. 4, Vol. n. 

 pp. 347357, 1868. [571 



NICHOLSON, H. A. On some new Species of Graptolites. Ann. and Mag. of Nat. 

 Hist. Ser. 4, Vol. iv. pp. 231242, 1869. (1 pi.) Brit. Assoc. Eep. 1869, p. 98. 



[572 



NICHOLSON, H. A. On the British Species of Didymograpsus. Ann. and Mag. of 

 Nat. Hist. Ser. 4, Vol. v. pp. 337357, 1870. [573 



NICHOLSON, H. A. On the Genus Climacograpsus, with Notes on the British 

 Species of the genus. Ann. and Mag. of Nat. Hist. Ser. 4, Vol. vi. pp. 370 384, 

 1870. [574 



NICHOLSON, H. A. Migrations of the Graptolites. Journ. Geol. Soc. London, 

 Vol. xxvin. pp. 217231, 1872. Ann. and Mag. of Nat. Hist. Vol. x. pp. 75, 76, 

 1872. [575 



NICHOLSON, H. A. A Monograph of the British Graptolitidag. 8vo. Edinburgh, 



1872. [576 

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



Quebec. (Graptolites.) Ann. and Mag. of Nat. Hist. Ser, 4, Vol. xi. 133143, 



1873. [577 

 NICHOLSON, H. A. On a new Genus and some Species of Graptolites from the 



Skiddaw Slates. (Azygograptus.) Ann. and Mag. of Nat. Hist. Ser. 4, Vol. xvi. 



pp. 269-273, 1875. (1 pi.) [578 



NICHOLSON, H. A. On Azygograptus, a new genus of Graptolites from the 



Skiddaw Slates. Eep. Brit. Assoc. : Trans. Sect. 1874. p. 78, 1875. [579 



NICHOLSON, H. A. Second Eeport on the Paleontology of the Province of Ontario. 

 8vo. 1875. (Diplograptus Hudsonicus.) [580 



NICHOLSON, H. A. Notes on the correlation of the graptolitic deposits of 

 Sweden with those of Britain. Geol. Mag. (2) Vol. iv. pp. 245249, 1876. 

 (Ipl.) [581 



NICHOLSON, H. A., see HAKKNESS, E. No. 514. [582 



POSTLETHWAITE, J. Graptolites of the Skiddaw Slates. Trans. Cumb. Assoc. 

 Lit. and Sci. 1883. [583 



KICHTEB, K. Aus dem thiiringischen Schiefergebirge. (Graptolites.) Zeitsch. 

 d. deutsch. geol. Geselhch. Vol. xxm. pp. 231256, 1871. (1 pi.) [584 



KICHTEE, K. Ueber Graptolithen. Neues Jahrl). f. Mineral. 1866, pp. 211, 212. 



[585 



KICHTER, E. Aus dem thiiringischen Schiefergebirge. Graptolites, pp. 266 272. 

 Zeitschr. d. deut.sch. geol. Geselhch. Vol. xxvii. pp. 261273, 1875. (1 pi.) [586 



