57 



Trilobite beds appear, having all the characters, and the 

 same species of fossils, as those noted in their exposures in 

 the gorge of Eighteen Mile Creek. The lowest bed, not fulh' 

 exposed there, exhibits its full thickness of one foot in this 

 section. In some places the shale underlying the lowest 

 Trilobite bed is seen, bearing Athyris spiriferoides (Eaton), 

 and Spirifer mucronatus { Conrad ). At the lower end of this 

 section the Trilobite la^-ers appear on the beach, where they 

 form a distinct shelf or platform, at the water's edge. 



Altogether this section is not a good one at the present 

 time, though some years ago, when a cutting \vas made 

 into it for a roadway, it aftbrded an excellent opportunity 

 for collectinof fossils. 



WANAKAH CLIFF. 



Plates XXIII and XXIV. 



This cliff begins north of the drift-filled gorge, on the land 

 of Mr. Albert Meyer. It extends northward for about a mile 

 and a half, and terminates in a bluff seventy-five feet high. 

 The northern end of the bluff drops off quite suddenh^, and a 

 long stretch of low clay banks, with occasional outcrops of 

 shale on the beach, succeeds this section, and se^Darates it 

 from the next one. 



The cliff at the southern end is very low, and much broken. 

 There is considerable acciimulation of debris at the base, which 

 has to be removed if the lowest strata are to be examined. 

 The Trilobite beds appear prominenth^ in the bank, the base 

 of the lowest being some eight or ten feet above normal 

 water level. In their total thickness these beds do not differ 

 much from the Eighteen Mile Creek outcrops, but in the sub- 

 divisions into shah' and calcareous beds, some variations 

 are observable. The most important strata, however, occur 

 again, /'. e. the lower bed (one foot thick), and the shale next 

 above, ( with Athyris spiriferoides ( Eaton ), and Streptelasma 

 rectum Hall). Half wa\^ up the bank appears the cal- 



