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and much more apparent to the casual observer. The plants have undergone a like evolution, which has been, however, more of structure than of external appearance. Could imagination transport us to Jurassic times and set us down near the mouth of the Hudson River,

Fig. 2. Sequoia Reichenbachi, a widespread Cretaceous Species, restored from numerous specimens from New Jersey clays.

we should find little that was familiar in either the fauna or the flora. The sediments which now exist as the red sandstones of the Connecticut valley and New Jersey had already been deposited. Volcanic activity

Fig. 3. Sequoia Langsdorfti, a widespread, chiefly Tertiary Species.

had been considerable and vast quantities of molten rock had been forced through the crust, forming, among others, the Orange Mountains of New Jersey and the noble line of Palisades along the Hudson. However, it is quite probable that one would have been as little disturbed