164 Scientific Intelligence. 



Pondville group 100 ft. 



Millers River conglomerates 

 Warasutta group 1,000 ft. 



Wamsutta conglomerates 



Attleboro sandstone 



Wamsutta slates and shales. 



These rocks are regarded as below the Coal Measures which 

 begin with the following : 



Rhode Island Coal Measures 10,000 ft. 



Cranston beds 

 Pawtucket shales 

 Sockanasset sandstones 

 Mansfield beds 

 Tenmile River beds 

 Seekonk sandstones 

 Westville shales. 

 Dighton group 1,000-1,500 ft. 



Seekonk conglomerate 

 Rocky Woods conglomerate. 

 The classification of the rocks of the southern field is made 

 and reported on by Mr. Foerste (pp. 223-393). His basal con- 

 glomerate and arkose are the equivalent of Mr. Woodworth's 

 Pondville group. The Wamsutta beds are not traceable south 

 of Providence. The Kingstown series of Dr. Foerste corresponds 

 in part to the Mansfield, Cranston, Sockanasset and Pawtucket 

 beds of Wood worth, and Foerste's Aquidneck shales correspond 

 to the Westville, Seekonk and Tenmile River beds of Woodwortb. 

 The Dighton formation of the north is called Purgatory conglom- 

 erate in the southern field. It is unfortunate that the two parts 

 of a field so small as' the Narragansett Basin could not receive the 

 same nomenclature. An insect fauna was found in the Pawtucket 

 shales, which has already been described by Dr. S. H. Scudder. 

 Special reference is made to this paper in the following article. 

 The plants are also chiefly from the Pawtucket shales, and the 

 list of species already reported in this Journal (3d series, vol. 

 xxxvii, p. 229) were identified as equivalent to the flora of the 

 Upper Carboniferous of Pennsylvania, by Lesquereux. w. 



2. View of the Carboniferous Fauna of the Narragansett 

 Basin ; by Alpheus S. Packard, Proc. Amer. Acad. Arts and 

 Sci., vol. xxxv, No. 20, fig. 1, pp. 399-405, April, 1900.— The 

 author having recently studied new material, collected by Mr. J. 

 II. Clark, of Providence, from this coal field, enumerates the fol- 

 lowing animal remains at present known from the Narragansett 

 Coal Basin : 



Spirorbis carbonarins. Pawtucket plant beds. 

 Impression of an Annelid? Pawtucket plant bed. 

 Impression of a plant or worm ? South Attleboro, Mass. 

 Sections of worm holes. One mile south of East Attleboro. 

 Anthracomya arenacea (Dawson) Hind. 



