32 



LIFE OF THE PLEISTOCENE 



station 15 (Plates I, VIII) 

 2150 feel north of Foster Avenue. Surface 590 feet A.T; 10 feet A.L.M. 



Strata 



Deposit 



Depth 



Remarks 





IV 



Silt and loam 



31 

 13 

 15 

 66+ 



With Unios. 





III 



Silt 





II 



Gravel and sand .. 





I 



Boulder clay 







Total thickness.... 







125 





station 16 (Plates I, IX) 

 2200 feel north of Foster A venue. Surface 590 feet A.T; 10 feet A .L.M. 



Strata 



Deposit 



Depth 



Remarks 



XII 



Silt and loam 



19 

 9V 2 



5 = 

 7 = 



V2 



9 



13 

 15 

 18 

 3V 2 



27+ 



Few shells in pockets in lower part. 

 With crayfish holes. 



XI 



Silt 



X 



Peat 





IX 



Silt 



Mollusks, leaves, twigs; crayfish 



VIII 



Marl bed 



burrow. 

 Solid bed of shells. 



VII 



Peat bed 



With twigs and sticks. 



VI 



SUt 



With shells. 



V 



Silt 





IV 



Gravel and sand 



With Unios. 



III 



Silt 



With wood. 



II 



Sand 





I 



Boulder clay 







Total thickness.... 







132^ 





BIOLOGICAL REMAINS 



Stratum IV 



Fusconaja undata 

 Crenodonta peruviana 

 Quadrula pustulosa 

 " lachrymosa 

 Rotundaria tubercidata 

 Pleurobema coccinemn magnalacustris 

 Elliptio crassidens 



" gibbosus 

 Sphaerium rhomboideutn 



Pisidium affine 



" compressum 

 " paupercidum 

 " politum 

 " splendidulum 

 " walkeri 

 " variabile 

 Campeloma integrum 

 Goniobasis livescens 



