,
_
.
.
_
:
_
.
…
_
,
”
,
'
_
-
"
L 147. _
'
_
Bering Molluscs and. Sponge. ><=‘_—.
'
ï_Topz Left, 5rzxl'onwa 7—71gastl; cen1m, 0yster b01=ed by Sponge, C 1177710»'
.
Ï Right, the” PÏddOCk (l’/z0/zzs dactyl7m).
‘
.Bottnm: Red Sandstone boved by various kinds of Piddock,
_
.
.
_.
,
(pp. 147, 148, 149).
_
.
.
_
:
_
.
…
_
,
”
,
'
_
-
"
L 147. _
'
_
Bering Molluscs and. Sponge. ><=‘_—.
'
ï_Topz Left, 5rzxl'onwa 7—71gastl; cen1m, 0yster b01=ed by Sponge, C 1177710»'
.
Ï Right, the” PÏddOCk (l’/z0/zzs dactyl7m).
‘
.Bottnm: Red Sandstone boved by various kinds of Piddock,
_
.
.
_.
,
(pp. 147, 148, 149).