\ 



CHANGES 



o 1 



OUR GLOB E. 



H5 



OF OUR 

 GLOBE, 



r 



Fifthly. Volcanos, no doubt, caufe great changes on the furfacc changes 



r 



of our globe, by accumulating the afhes and pumice ffcones, which 



■ 



they continually emit, and by the flreams of lava, which often are 



-I 



thrown up by them and run a confiderable diftance, caullng great 

 ravages in cultivated regions : we certainly have reafon to believe, 



r 



that the whole hill where the volcano was at Tanna, had been 

 coniiderably enlarged by the afhes, pumice Hones, and lava. 



S- 



Nay, 

 tthe foil of -the whole ifland had been altered by the continued fall 



of aflies. I obferved befides this, a cliff to the Eafl of the volcano 

 near the fea, at more tlian ten miles diftance'from it, which certainly 

 contained veftiges of a great revolution. It confifled of a black 

 iiindy or gritty flratum, full of pumice flones, a great many red, 

 ochreous ftones, and pieces of lava. . 



\ 



S 



E 



C 



T 



I 



O 



N.. 



III. 



O 



the DIMINUTION of the SEA and WATER 



1 



1 



HIS fubjed has of late been treated in various man 

 the learned world. Some have ei 



by 



deavoured to 



P 



every argument they could 



the fea gradually made a regular recefTion from the land, and they 



have corroborated this opinion, with 



pofTibly devife. In Sweden it has been the favourite opinion of 



the mofl eminent philofophers. But as all opinions may be carried 



DIMINU- 

 TION OF 

 THE SEA, 



^U 



too 



; 



