N. A. INVERTEBRATE PALAEONTOLOGY. 725 



Hall, James. — Discussion upon the Manner of Growth, Variation of 

 Form, and Characters of the Genus Feuestella, and its Kelations to He- 

 mitrypa, Polypora, Eetepora, Cryptopora, &c. Rep. State Geologist 

 for 1882, pp. 5-16, figs. 1-36 on pp. 9, 10, 12,13,15. 4to. 1883. Albany. 



Eedefiues the genus Fenestella, and includes in it Eetepora, Fhyllop- 

 ora, Leptopora, Eeteporina, Fenestrellina, Hemitrypa. For continuation 

 of article, see Bep. State Oeologist for 1884, pp. 35-45. 1885. Albany. 



Hall, James. — Fossil Corals and Bryozoans of the Lower Helderberg 

 Group and Fossil Bryozoans of the Upper Helderberg Group. Eep. 

 State Geologist for 1882, p. 17, pis. i-xxxiii. 4to. 1883. Albany. 



These plates are photolithographed and published with their expla- 

 nations in advance of vol. vi, Palaeontology of New York. 



Hall, James. — Brachiopoda: Plates and Explanations. Eep. State Ge- 

 ologist for 1882, j)ls. xxxiv-LXi. 4to. 1883. Albany. 



These plates are photolithographed and published with their expla- 

 nations in advance of vol. iv, part ii, Palaeontology of New York. 



Hall, Jaimes. — Description of the liryozoans of the Hamilton Group. 

 (Fenestellidse excepted.) Eep. State Geologist for 1883, pp. 5-61. 

 1884. Albany. 



The following new species are described : Callopora hipunctata, Thal- 

 lostigma multaculeata, Lichenalia cultellata, Stictopora crenulata; then 

 Stictopora is described as a subgenus on p. 48 ; S. (s. g. 1) dichotoma n. 

 sp., is described under it. 



Most of the species' and genera in this article were more briefly de- 

 scribed in the Trans. Albany Institute, vol. x, pp. 179-197. 1883. Albany. 



Hall, James. — Notice of the Machinery and Methods of Cutting Speci- 

 mens of Kocks and Fossils at the New York State Museum of Natural 

 History. 35th Eep. Neic York State Mus. Nat. Hist., pp. 121-124, pis. 

 i, ii, and xvi. 1884. Albany. 



Plates i and ii contain figures of the machinery used, and i)late xvi 

 contains figures and translucent sections of fossil corals made by the 

 method explained. The illustration of Tetradium Ontario is marked as 

 a new species. 



Hall, James. — Preliminary Notice of the Lamellibranchiate Shells of 

 the Upper Helderberg, Hamilton, and Chemung Groups. Prepara- 

 tory for the Palaeontology of New York, part i. 35th Eep. New York 

 State Mus. Nat. Hist, pp. 215-406f. 1884. Albany. 



A separate issue of this paper was also published with five plates on 

 generic illustrations taken from the Eeport of the State Geologist for 

 1882. 



Published in advance of Palaeontology of New York, vol. v, part i. 

 Noticed last year. 



