30 



LIFE OF THE PLEISTOCENE 



Crenodonta peruviana 

 Quadrala pustulosa 



" lachrymosa 

 Rotundaria tuberculoid 

 Pleurobema coccineum magnalacuslris 

 Elliptio crassidens 



" gibbosus 

 Symphynola costdta 

 Obliquaria reflexa 



Quercus species 



Sphaerium sulcatum 



" striatinum 

 Pisidium affine 



abdilum 

 compressum 

 politum 

 scutcllalum 

 variabile 

 Campeloma subsolidum 

 Valvata tricarinatd 

 Amnicola emarginata 



Stratum X 

 (Plants) 



(Animals) 



Lampsiiis lutecia 



" ventricosa 

 Pisidium compressum 

 " scutellatum 

 " virginicum 

 Campeloma integrum 



subsolidum 

 Goniobasis livescens 

 Amnicola letsoni 



Amnicola limosa 

 „ lustricd 

 Physd wdrrenicutd 

 Ancylus fuscus 

 Plonorbis antrosus 



" campanulatus 



" deflectus 



" pdrvus 



" trivolids 

 Galba palustris 

 Lymnaea stagnalis appressa 



station 11 (Plate I) 

 1805 feet north of Foster A venue. Surface 590 feet A.T.; 10 feet A . L. M. 



Strata 



Deposit 



Depth 



Remarks 



II 



Sand, yellow 



12 

 116 



128 



No life. 



I 



Boulder clay 







Total thickness ... 













