A 



T 



M 



O 



S 



P 



H 



E 



R 



E. 



IIS 



fub terraneous fire rel cafes a great deal of air, which' raifes the fea 

 caufes a bubbling and a fmoke, and unites the clouds with the fea. 



by a fpout. 



But we cannot help remarking, that the 



vapours ap- 



peared to all of us, as fleam raifed by violent winds, and by no means 

 as fmoke produced by fire. Nay, had the place been heated by a 

 fubterraneous fire, the thermometer would certainly have rifen 

 higher ; but we obferved it to fall, which clearly proved the air to 



have "become cooler 



I will only add, that the rarefadion of 



air and elearlclty, are certainly more than fufHcient For the expla 

 nation of the various phaDnomena of this meteor. 



J^oca/ur i^ coh?nna^ q-n Jf[^ 





fj-ff^^ tA/j 



^ ^ 



n^ehiti jijljila nv^^s ac"""^' '-_-'-■ \ 



^!l\f^ f^ift'^n^t* Ex CO clem gencre & In longntn 



Plinii U'lft. Nat. lib. ii, c. 49. 



ATMO- 

 SPHERE. 



..\ 



M 



> . 



s 



E 



C 



T 



I 



O 



N 



II 



« # 



AERIAL PHi^NOMENA 



Virjiy 



REZIER obferved under the tropic, at fun-fetting, a 

 GREEN CLOUD ; and he defcribes it as a thing very fmgular. 



I 



Thofe who are acquainted with colours, and the various efFeds of their 

 mixtures, know that green is naturally produced by mixing yellow 



; natural colour of the fky, and of a great many 



and blue. 



Th 



clouds, is blue : the fetting fun 



Q.2 



commonly gilds all the fky and 



clouds 



AERIAL 



PH^NO 



MENA. 



/ 



