NOTES ON THE LATE COLLECTING SEASON 



several for inspection at a former meeting, obtained from 

 the deposit. The glittering red Orthoclase so often noticed 

 in beach shingle occurs also in the drift; but the Serpentine 

 is, I think, the first observed at Winona. Probably it 

 came from that also. Had it been where found detached 

 last year it must have been seen, yet it was not above high 

 water mark. 



FOSSILS FROM DRIFT AND SHORE SHINGLE. 



With regard to the numbers collected on the lake shore 

 last season, you may not notice any considerable falling off, 

 taking into consideration that only in a few places any fresh 

 shingle was exposed along the beach ; yet it must be ad- 

 mitted that very few rare fossils were secured in anything 

 like fair preservation. Without the original for compari- 

 son, the writer has often expressed his unwillingness to 

 name organisms from published figures, too often inaccur- 

 ately represented. I may not be far astray in considering 

 one of the best now submitted for j^our inspection as iden- 

 tical with the late Prof. Billing's Lamellibranch Modiol- 

 opsis Gesneri from the Trenton series at Ottawa, Corre- 

 sponding specimens were placed and named in the City 

 Museum cases before our collection was broken up. 



A Lingula was obtained under singular circumstances. 

 In extracting the cast of the valve of a shell in the Cambro 

 Silurian shingle it split across under the hammer, revealing 

 the fossil and mould underneath, embedded in the muddy 

 sediment which filled the interior of tlie dead bivalve. The 

 latter I sent to Ottawa, remarking I could scarcely separate 

 it from the Clinton Lingula oblata (Hall). The posterior 

 margin was incomplete, and on re-examination under the 

 lens it appeared to be nearly related to Lingula Kingston- 

 ensis (Billing's). If it can be established, we may add it 

 to many other rare fossils of the glacial drift, which mem- 

 bers of the Geological Section discovered at the lake shore, 

 Winona. 



