GUAPTOLITES OF NEW YORK, PART 1 743 



SUPPLEMENTARY NOTES 



Note I Several pamphlets received from Mr T. S. Hall of Melbourne, 

 when this memoir was nearly through the press, have given the writer the 

 first intimation of important investigations on Lower Siluric graptolites 

 carried on by our antipodes since the publications of McCoy and Etheridge 

 on this subject. Unfortunately I have even now been unable to obtain all 

 desired literature in time for this supplementary note. Since, however, the 

 occurrence of our Beekmantown graptolites in Australia has, in this memoir, 

 been recorded only after the identifications contained in the earlier papers, 

 which, according to Mr Hall are — owing to their antedating Lapworth's 

 revision of the British graptolites — in many cases unreliable, I append here 

 in amendment of my oversight a list of the American graptolites recognized 

 by Hall and others in Australia as well as other facts of importance from 

 their papers in regard to the fauna here described. 



The following list of later Australian publications, as complete as I can 

 glean it from Mr Hall's papers, is to be added to "References," forming chapter 1. 



1886 Hector, James. Catalogue New Zealand Geological Exhibits, Ind. and Col. 



Exhibit, p.82 



1892 Hall, T. S, Proceedings Royal Society of Victoria, n. s. 4, p.7 



1894 6, p.74 



1895 7, p.65 



1895 Pritchard, G. B. Proceedings Royal Society of Victoria. n« s. 7, p.30 



1897 Hall, T. S. Proceedings Royal Society of Victoria, n. s. 10 [9 ?1, p.l31, 183 



1897 Dun, W. S, Records of the Geological Survey New South "Wales, 5:124 



1898 Hall, T. S. Proceedings Royal Society of Victoria n. s. 10, p.202 

 1899 ll,p.l64 



1899 Geological Magazine n. s. Dec. 4, 6:438 



Mr Hall recognizes four divisions in the lower Ordovicic rocks of Victoria. 



1 Lancefield series, which besides Australian species of Bryograptus, 

 Leptograptus, Didymograptus, Tetragraptus, a Phyllograptus ? and Dictyo- 

 nema contains the following species of the Northern Hemisphere. 



Clonograptus flexilis J. Hall 

 C. rigid us J. Hall 



C. rigidus var. tenellus Zinnars. 



