Geology and Natural History. 317 



ably the same specimen was described by Prof. O. C. Marsh in 

 this Journal in 1867, and named Brachiospongia Boemerana. 

 In 1858, in vol. ii of the Kentucky Geological Survey, the species 

 was named Scyphia digitata, by D. D. Owen, from Kentucky 

 specimens, and afterward Scyphonia digitata. Mr. Beecher, in 

 his memoir, after presenting further facts respecting the syn- 

 onymy of the species and describing its geological position as in 

 the Trenton limestone, gives a detailed account of the species 

 under the name Brachiospongia digitata, and illustrates it with 

 excellent figures on plates I to IV, showing its various forms, its 

 external and internal structure and its hexactinellid spicules. 

 The number of arms or lobes is shown to be a variable character, 

 the extremes observed being 8 and 12, and the extremes in diam- 

 eter, 3^ and 11 inches. Specimens with 12 arms, the maximum 

 number, vary in size from 6 to 10-^ inches. 



Besides the full account of the Brachiospongia, Mr. Beecher de- 

 scribes and figures also two species of a new genus of Hexacti- 

 nellid Sponge, named by him Strobilospongia, based on specimens 

 collected by himself with the Brachiospongia in Franklin County, 

 Kentucky. The sponge has irregularly rounded lobes grouped 

 about the surface of a stout central mass or stem. The species 

 are S. aurita Beecher and S. tuberosa Beecher. The memoir is a 

 very important contribution to the science of American Paleozoic 

 Sponges. 



2. On the Waverly Group of Ohio. — In a paper on the Geology 

 of Licking Co., Ohio, contained in the Bulletin of the Denison 

 University (Granville, Ohio), Vol. IV, Parts 1 and 2, dated Decem- 

 ber, 1888, Prof. C. L. Herrick continues, from the preceding num- 

 ber, an enumeration of the fossils obtained from the Waverly 

 group and describes and figures (Plates I to XI) some new spe- 

 cies. His papers occupy 85 pages of the number. He arrives at 

 the following arrangement of the Waverly series, beginning be- 

 low: 



(1.) Berea or Transition Series, the western equivalent of the 

 Upper Chemung: (1) Cleveland shale (local), 50 feet; (2) Bed- 

 ford shale, 50 ft.; (3) Berea grit, 50-60 ft.; (4) Berea shale (in- 

 cluding, besides the Black shale, the greater part of the shale be- 

 low the Kinderhook), 200-400 feet; (5) Waverly shale, 40 feet. 



(2.) Cuyahoga or Waverly Series, Subcarboniferous: (1) 

 Kinderhook, Conglomerate I, 50 to 60 feet (not represented in 

 the northern* and eastern counties of Ohio); (2) Logan, or the 

 Burlington and Keokuk, Conglomerate II, 100 to 150 feet. 



The fossils from the Bedford shale leading to a reference of 

 it to the Chemung are : Lingida melie H, Orbicidoidea New- 

 berryi H, Orthis Vanuxemi H.,* Chonetes scitula* Ambocoelia 

 umbonata* Hemipronites sp., Macrodon Hamiltonae H.,* Micro- 

 don bellistratus Con.,* Leda diver sa, var. Bedfordensis* Palceo- 

 neilo Bedfordensis Meek (= var. of P. constricta), Pterinopecten 

 sp., Bellerophon JVewberryi* B. lineata H. ?, Loxonema resem- 

 bling L. delphicola* Orthoceras resembling O. tintcum, Gonia- 



