1G7 



lictwecn tlie slraliim last mentioued {nu/.>ia) and llic next mentioned, there are 

 a few inches of bituminous liniestones and shales which connect tliem without brcflk, 

 and the section is thus continued in descending/ ordei- : 



Dark, impure, bituminous limestone band, holding I.Pi>lwiui 

 xiricea, Sowerliy ; and other fossil remaias. 



8oft, friable, purplish black, disintegrating, fossilifeious jiiales 

 very cliaracteristic in its mode of occurrence and distributed in other 

 ]iortions of Ottawa City and elsewhere holding abundance of white 

 weathering fossil remains, amongst which were recognized: 0/lhi.s 

 tisludinaria, Dalman ; Lcptiena serieca, Sowerl)v, and Asaphiis Can- 

 adengin, Cha})man. 



Jiaud of unevenly bedded, impure, bituminous limestone with 

 Asaji/ius Canadensis and Orlliis Imludinaria. 



iSofr, friable shales, holding abuudance of fossils ; very .-imilar to 

 and evidently deposited under exactly similar conditions, as the one- 

 and-a-half inch band below : Li'plifna serieca, Sowerby, and varieties 

 with elougate-mucronate lateral extremities, also Orthi.s tesludinaria, 

 Dalman, are present in large numbers. 



Band of light-gray, impure limestone, bituminous, and holding : 

 Orthis tesludinaria, Dalman ; Lrptiena neric/a, Sowerby; Coniilaria 

 TrcnloncuHis. 



Thiu, irregular and unevenly bedded, soft, friable, earthy shales, 

 disintegrating rapidly, when exposed, and teeming with fossil remains. 

 These fossils often appear on the unearthed suifaces white in colour 

 on the brownish-gray shales. Ortlns tcsludinnria, Dalman, and Lfji. 

 tuna ncricra, Sowerliy, seem to lie the two forms most prevalent, and 

 are often so preserved as to show characteristic intern.il and external 

 markings. 



lilack, bituminous, impure limestone band, with Leplirjia tertcea, 

 Sowerby ; Orthis einacerata. Meek, and Asap/nts Canad'^nai'', Chapman. 



Hlack and bituminous shales, holding abundance of organic re- 

 mains, especially those of the characteristic Asaphvs Canadcnxis, 

 Chapman, of which the numbers })resent are exceedingly great. 



J?and of impure, highly bituminous limestone, yielding a strong 

 odour of itetiolcum, when struck with a hammer ; black in colour, with 

 irregular, sharp, splintery and conchoidal fractures, in which occur 

 the remains of As-i/dii/s Canadensis, Chapman ; Strop/tomena alternala, 

 Conrad, kc. 



Black, bituminous and somewhat splinti-ry brittle shales, holding 

 the following fossils : Lc/ilOffraplus JlacciduK, Hall ; (?) Sai/encUii. am- 

 /liffua, Walcott ; L^/iloholits insignia, Hall; Schizorrania Jilota, Hall; 

 J^rpUrnn serieca, Sowerby ; Cumilaria Trenloneiisi-', Hall ; Kndoreras 

 Proleifonne, var leituislriatinn, Hall; Asa/diw ('ana fensis, Cliapman ; 

 LepcrdUia, sp. allied ^ L. cyLtndriea, Hall. 



Bituminous 

 limestone, 

 9 inches. 



Soft,' fiiable 

 I'ha/e.-, 

 8 inches. 



unevenly 

 bedded 

 limestone, 

 7 inches. 



Soft, friable 

 shales, 

 24 inches. 



Jiituminous 

 limestone, 

 4 inches. 



Soft, earthy 

 shales, 

 1 T inches. 



Bituminous 

 limestone, 

 8 inches. 



Bitumincus 

 shales, 

 14 inches. 



Impure, 

 l)ituminous 

 limestone, 

 11 inciies. 



Bituminous 

 shale?, 

 7 inches. 



Tliese sections taken togetliei- yivc a total thickness of /ourteeu 

 /eel tea inches, so fur us examined in ' Ridcan,' wldtlj, wi.li the fair 



