“112° TRANS. OF THE ACAD. OF SCIENCE. 
conclusive ah airafene 9. as it, doubtless, will be to yours. 1 Peomien 
ribed foss pe be ee sie exceptions, are are AMentcal 2 with Permian 
species of er ngland, while all of th 
nearly allied to » Permian 
orms than to an 
the of Bryozoa whe, wie doubt, Permian. | 
1. Thamniscus dubius bine (King), is certainly in our collection. 
2. Fenestella retiformis (King ur specimens agree with the Russian 
ee oes ermian, referred doubtfully to this by Lonsdale. (Geo. 
uss., Vol. I, p. 680.) it 
3. Than » Species not oe cy ge which seems to be ‘identical 
Zien: specimen figured in Geol. Trans., 2d Ser., Vol. 3, pl. 2, 
4. Schizodus Rossicus (Verneuil), Geol. Russ., pl. 19, figs. 7 & 8. We 
have numerous specimens of this saifi polenta t Permian fossil. Both va- 
Page an a (eck are sented in our = collection. 
. Avicula ant a Buss, Vol. 2 pl. 20, fig. Hawn’s 
collection y specimens which appear to be identical with ‘this 
Ps ellen also contains specimens which are a 
quite Identical with Productus head Ver., Murchisonia suban 
Mytilus Pallasi, ; Kiuton 
can enh sufficient to justify our decision tat : 
tks are Permian. Indeed, I know of no other formation in the 
