1>2 



AKT. 1'. — S. TOXUNAGA. 



Crag, although lie recogn'izüd no extinct species in his collection. 

 The result obtained by in^'self is slightly different. Before 

 stating it, however, it is necessary first to examine whether the 

 fossil beds represent a single geological horizon or not. 



Fig. 1> 



T)1T.UVÎIM ■! 



I 

 I 



I 



r 



Suzuki. 



S;iiid with i,'r:ivcl. — r^ 



Miiacvjus chiv 



]JR.\UNS. 



— Loam. (3 metre.) ~) 



Conglomcratii.' sand- — 

 I stoue inlervein- 

 I orl witli liiiiniiit 

 Tertiart I fihell-UiviT. 



Tiiir.iccou- 



stone. 



Tketi.vkv. 



I Tol.ble layer-^M 



Clayisli lufi'iiCL'OU 

 I .sanilstuiic. 



I- ,..-... 



Fig. 2. — Profile at Oji fossil bed. 



shows the order of succession of the layers at Oji as observed 

 by Brai'nh and Dr. T. ISuz'Jki. The boundary line between 

 the Tertiary and (Quaternary is assumed l)y Brauns to be directly 

 above the shell layer, while Suzuki takes for it a micaceous 

 clay, in which badly preserved ])lant impressions were discovered. 

 Of this line in the layers of Shinagawa Suzuki makes no precise 

 statement in his " j^xplanatory Text to the Geological Sheet, 

 Tokyo, 1887," (published in Ja])anese). As shown in my profde 

 (Fig. o), a bluish clay 



and sand are ovei'laid 

 l)y a l)rownish clay, and 

 arc found above the 

 shell laver which cor- 



"-^rr^-Bliiisli clay (I. '.'7 luolrc» 



.'^aml-layvr i !.].'> luotre) 

 SlicU-layor ( .,>>7 metro + i 



Fig. 3. — Profile at Shinagawa fo.'^sil ht'd. 



