253 



4. Dalmanella testudinaria (Dalman) a 



5. Hemiphragma tenuimurale Ulrieh r 



6. Isotelus gigas deKay '. e 



7. Orthoceras juneeum Hall r-e 



8. Plectambonites sericous (Sowerby) a 



9. Prasopora simulatrix Ulrieh aaa 



10. Rafinesquina alternata (Emmons) e 



11. Schizocrania filosa Hall r 



12. Stigmatella n. sp r 



13. Trematis terminalis (Emmons) r 



2. Below crest of the lower portion of High Fall.* 



The strata, thin and shaly, lies at the base of the contorted layer. The 

 following species were collected: 



1. Crinoid segments a 



2. Dalmanella testudinaria (Dalman) r-c 



3. Eridotrypa aedilis minor (Ulrieh) r-e 



4. Prasopora simulatrix orientalis Ulrieh aaa 



3. A collection at the crest of High Falls yielded the following species: 



1 . By thopora sp r 



2. Crinoid segments c 



3. Dalmanella testudinaria (Dalman) a 



4. Hallopora ampla (Ulrieh) r-e 



5. Hallopora goodhuensis (Ulrieh) a 



6. Plectambonites sericeus (Sowerby) r-c 



7. Prasopora simulatrix orientalis Ulrieh aa 



8. Rhinidictya exigua Ulrieh r 



4. Upper High Fall. 



The rocks are thin bedded both in the upper and lower portion of upper 

 High Fall. The contorted stratum lies at the base. The following species 

 were collected: 



1. Arthoclema cornutum Ulrieh a 



2. Calymene senaria Conrad e 



3. Corynotrypa delicatula (James) r 



*From a collection made by Mr. T. F. Sayer, five feet below the crest of the 

 lower portion of High Falls. 



