Notices of Memoirs — HyaWs Carboniferous Cephalopods. 549 



divisions of the Chalk which includes the Coprolite Bed of the 

 " Cambi-idge Greensand." 



About half the work is devoted to Glacial and Post-Glacial 

 Drifts, and tbis includes notes by Mr. Skertchly on beds at Culford, 

 Mildenhall, and other places, where he obtained worked flints, 

 believed by him to have come from strata older than the Chalky 

 Boulder Clay ; as Mr. Whitaker remarks, the question is whether 

 the implements were really obtained from the beds iu which they 

 were reported to have been found. 



A number of records of well-sections are given, and there are 

 supplementary geological bibliographies of Cambridgeshire and 

 Suffolk. 



3. Explanations of Horizontal Sections. 



Nos. 130 to 189 have been prepared by Mr. C. Fox-Strangways, 

 with the assistance of Mr. H. H. Howell, Mr. Clement Reid, 

 and Mr. George Barrow. They give concise descriptions of the 

 Jurassic, Cretaceous and other strata in various parts of East 

 Yorkshire. Explanation of Horizontal Section, Sheet 140, by Mr. 

 Horace B. Woodward, describes the Jurassic and other strata along 

 a line from Bishopstone, near Hartwell, to near " the Centre of 

 England " at Wibtoft in Warwickshire. These explanations are 

 issued to the public at the modest price of 2d. each. 



II. — Carboniferous Cephalopods. By Alpheus Hyatt. From 

 Second Annual Report of the Geological Survey of Texas, 1890. 

 pp. 329-356. (Austin, State Printing Office, 1891.) 



fl^HE descriptions given in this paper were taken partly from a 

 I collection forwai"ded to the author by Mr. E. T. Dumble, State 

 Geologist of Texas, partly from specimens belonging to the United 

 States National Museum, Washington, D.C., and partly from speci- 

 mens belonging to private individuals whose names are given in 

 connexion with the specific descriptions. As stated in an intro- 

 ductory note, the forms here described comprise a larger number 

 of Carboniferous species than has hitherto been got together in a 

 single publication. The genera represented are divided between the 

 Nautiloidea and the Goniatitince. To the former belong Temnocheilus 

 with five species (^Forbesianus, latus, conchiferus, depressiis, and 

 crassus, the last three being new) ; Metacoceras with five new species 

 (cavatiformis, dubium, Walcotti, Hayi and inconspicuum) ; Tainocems 

 with one new species (cavatum) ; Domatoceras, a new genus 

 allied to Centroceras, represented by the new species umbilicatum ; 

 A><ymptoceras with one new species (Newtoni) ; Phacoceras with one 

 new species [Dumbli) ; Ephippioceras with one new species (divisum) ; 

 and Endolobiis with one new species (gibbosus). The QoniatitincB are 

 represented by the genus Gastrioceras with the new species G. com- 

 pressum. The descriptions are accompanied by outline figures. 



