On the remains of a reptile (Dendrerpeton Acadianum, Wyman and Owen) and of a land shell discovered in the interior of an erect fossil tree in the coal measures of Nova Scotia by Lyell, Charles Sir, Dawson, John William Sir

On the remains of a reptile (Dendrerpeton Acadianum, Wyman and Owen) and of a land shell discovered in the interior of an erect fossil tree in the coal measures of Nova Scotia