508 Review of the Progress of North American [June, 
in Bulletin No. 2 of his own series; no illustrations accompany 
these descriptions. 
James Hall has published a large number of papers, some of 
which have appeared in limited editions in previous years, but 
they have not yet been noticed in these reviews. He publishes a 
“Note on the intimate relations of the Chemung group and 
Waverly sandstone in Northwestern Pennsylvania and South- 
western New York,” and a “ Note on the Eurypteride of the De- 
vonian and Carboniferous formations of Pennsylvania, with a 
supplementary note on the Sty/onurus excelsior,’ in the Proc. A. 
A. A. S., Vol. xxx, Part 11, pp. 416 and 420. In the 2d Geol. 
Surv. Pennsylvania, Rep. of progress PPP, p. 23, he has a “ Note 
on the Eurypteridz of the Devonian and Carboniferous forma- 
tions of Pennsylvania.” In the Rep. State Geologist for 1881, p. 
8, there is a “ Classification of the Lamellibranchiata.” In the 
Rep. State Geologist for 1882, p. 5, there is a “ Discussion upon 
the manner of growth, variation of form and characters of the 
genus Fenestella, and its relations to Hemitrypa, Polypora, Rete- 
pora, Cryptopora, etc.” This article is continued in the Rep. State 
Geologist for 1884, p. 35. Sixty-one photo-lithographed plates 
accompany the Rep, State Geologist for 1882. They are published 
` in advance, with their explanations, under the following heads: 
“Fossil corals and Bryozoans of the Lower Helderberg group, 
and fossil Bryozoans of the Upper Helderberg group,” P. 17 
plates 1-xxxti1, in advance of Vol. vi, Palzontology of New 
York ; “ Brachiopoda, plates and explanations,” pls. XXXIV-LXI, in 
advance of Vol. 1v, Part 11, Paleontology of New York. In the 
-~ Rep. State Geologist for 1883, p. 5, he gives a “ Description of the 
= Bryozoans of the Hamilton group (Fenestellidz excepted).” The 
-~ _ 35th Rep. New York State Mus. Nat. Hist. contains the following 
papers: “ Notice of the machinery and methods of cutting spe" 
mens of rocks and fossils at the New York State Mus. Nat. Hist, 
p. 121; “ Preliminary notice of the lamellibranchiate shells of the 
‘Upper Helderberg, Hamilton and Chemung groups, preparatory 
_ for the Paleontology of New York,” Part 1, p. 2153" Descrip- 
tion of fossil corals from the Niagara and Upper Helderberg 
: groups,” p. 497; and “ Illustrations of the microscopic structure ia 
-of Brachiopoda,” pl. xxi. The 36th Rep. New York State Mus 
_ Nat. Hist., contains the following papers: “ Bryozoa (Fenestel- : 
_ lidæ) of the Hamilton group,” p. 57; “On the structure of te 
