279 Crown Point Section 13 



4. Heavy bedded limestones, interstratified with 

 slaty shale. No fossils other than the numerous 



fucoids. 7 ft. 7 in. 25 ft. 2 in. 



5. Two heavy beds of light gray, coarseh' 

 cr5'stalline, impure limestone, containing few 



fossils. 3 ft. 4 in. 28 ft. 6 in.. 



*r Camarella vcirians. r Dinortliis platys. 



6. Thin bedded, impure, nodular, blue lime- 

 stone. Some la5'ers contain mau}^ fossils. 3 ft. 4 in. 31 ft. 10 in. 

 r Machirea magna. o. Rafinisqtiina fasciata. 



r Hebcrtclla borealis. r R. chain plainensis. 



c Dinorthis platys. c Asaplius canalis. 



r Orthis co stalls. 



7. Thin bedded, impure limestone, interstrati- 

 fied with coarsely crystalline, impure layers contain- 

 ing many crinoid stems. Fossils rare. At base 

 Diiiorthls platys was common and Asaphiis canalis 

 rare. At top we found: 



r Machirea magna. c Orthis (?) porcia. 



r Camarella varians. r AsapJuis canalis. 



c I^eperditia canadensis var. 



nana. 7 ft. 10 in. 39 ft. 8 in. 



8. Impure, heavy bedded, bluish limestones 

 containing man}^ fossils, which, however, it is diffi- 

 cult to extract. 12 ft.' 3 in. 51 ft. 11 in. 

 r Orthis (?) porcia. r Hebertella borealis. 



c Rafinisquina champlainen- r Dinorthis dejlefla (?) . 



sis. r Asaphus canalis. 



rr Triplccia gracilis. 



From this point the rocks are covered for about a thousand 

 feet along the shore. Then we find impure, bluish limestones in 

 which Machirea mag?ia is very common. 



At A 8 the dire(5lions of the joint planes are N. 50° K., N. 

 35° W., and N. & S. Glacial striae, N. 34° E. 



*The small letter before each name signifie.s abundance: c means 

 common, a abundant, aa, that the rock is filled with individuals of that 

 species; r denotes rare and rr that only one or two .specimens were found. 



