Lyell has shown that it is hardly possible to resist the evidence on this head in the case of the several tertiary stages; and every year tends to fill up the blanks between them, and to make the percentage system of lost and new forms more gradual. In some of the most recent beds, though undoubtedly of high antiquity if measured by years, only one or two species are lost forms, and only one or two are new forms, having here appeared for the first time, either locally, or, as far as we know, on the face of the earth.
But such cases are certainly exceptional; the general rule being a gradual increase in number, till the group reaches its maximum, and then, sooner or later, it gradually decreases.
It is impossible here to give the reasons, but I am convinced that the shingle terraces were accumulated, during the gradual elevation of the Cordillera, by the torrents delivering, at successive levels, their detritus on the beachheads of long narrow arms of the sea, first high up the valleys, then lower and lower down as the land slowly rose.
In the first place, metallic veins in this country are generally harder than the surrounding strata: hence, during the gradual wear of the hills, they project above the surface of the ground.
The road, which as yet had been good with a steady but very gradual ascent, now changed into a steep zigzag track up the great range, dividing the republics of Chile and Mendoza.
I thought the windows of the sets of chambers into which those houses were divided, were in every stage of dilapidated blind and curtain, crippled flower-pot, cracked glass, dusty decay, and miserable makeshift; while To Let To Let To Let, glared at me from empty rooms, as if no new wretches ever came there, and the vengeance of the soul of Barnard were being slowly appeased by the gradual
suicide of the present occupants and their unholy interment under the gravel.
Some weeks before their death, they feel a gradual
decay; but without pain.
And though an intimate intercourse under the same government will promote a gradual
assimilation in some of these respects, yet there are causes, as well physical as moral, which may, in a greater or less degree, permanently nourish different propensities and inclinations in this respect.
But the great security against a gradual
concentration of the several powers in the same department, consists in giving to those who administer each department the necessary constitutional means and personal motives to resist encroachments of the others.
It was noon, and Monte Cristo had set apart one hour to be passed in the apartments of Haidee, as though his oppressed spirit could not all at once admit the feeling of pure and unmixed joy, but required a gradual
succession of calm and gentle emotions to prepare his mind to receive full and perfect happiness, in the same manner as ordinary natures demand to be inured by degrees to the reception of strong or violent sensations.
Hutchinson rejoiced to mark the gradual
growth of an aristocratic class, to whom the common people, as in duty bound, were learning humbly to resign the honors, emoluments, and authority of state.
After the gradual
cessation of all sound and movement on the faithful river, only the ringing of ships' bells is heard, mysterious and muffled in the white vapour from London Bridge right down to the Nore, for miles and miles in a decrescendo tinkling, to where the estuary broadens out into the North Sea, and the anchored ships lie scattered thinly in the shrouded channels between the sand-banks of the Thames' mouth.