...this, was a darker and more solid travertine, containing black and decomposed masses of confervae; in the inferior part, the travertine was more solid...eternal city, such as the triumphal arches and the Colosaeum, owe their duration to this source. Then, from all we know, this lake, except in some change...

...decomposed masses of conferva; ; in the inferior part, the travertine was more solid, and of a gray colour ; but with cavities which I have no doubt were...eternal city, such as the triumphal arches and the Colosaeum, owe their duration to this source." — Sir Humphry Davy's Last Days of a Philosopher, THE...

...of a Philosopher, observes (p. 119.), that some of the largest arid most magnificent ruins in Rome, such as the triumphal arches and the Colosseum, owe their duration to the travertine of which they are built ; originally " formed by a variable source of the most perishable...

...were built, though hardened by fire, are crumbled into dust ; whilst the masses of travertine around, though formed by a variable source from the most perishable...the Colosseum, owe their duration to this source. How marvellous are those laws by which the humblest types of organic existence are preserved, though...

...phenomena surrounding me in that spot, to compare the works of man with those of nature. The baths, erected nearly twenty centuries ago, present only heaps of...eternal city, such as the triumphal arches, and the Coliseum, owe. their duration to this source. Then, from all we know, this lake, except in some change...

...most perishable materials, have hardened by time, and the most perfect remains of the great282 est ruins in the eternal city, such as the triumphal arches, and the Coliseum, owe their duration to this source. Then, from all we know, this lake, except in some change...

...are crumbled into dust; whilst the masses of travertine around, though formed by a variable souree from the most perishable materials, have hardened...greatest ruins in the eternal city, such as the triumphal arehes and the Colosseum, owe their duration to this souree. How marvellous are those laws by which...

...vegetables now unknown are preserved with the remains of crocodiles, turtles, and gigantic extinct saurians, which appear to have belonged to a period when the...and the Colosseum, owe their duration to this source How marvellous are those laws by which the humblest types of organic existence are preserved, though...

...are built, though hardened by fire, are crumbled to dust ; whilst the masses of travertine around, though formed by a variable source from the most perishable...the Colosseum, owe their duration to this source." Amongst the innumerable evidences of the continual changes that are taking place in the earth's crust,...

...warm source to the grander depositions in the secondary rocks, where the CONSOLATIONS IN TRAVEL. 95 zoophytes or coral insects have worked upon a grand...nearly in the same state in which it was described 1,700 years ago by Pliny, and I have no doubt contains the same kinds of floating islands, the same...