iZÔ STUDIES OF NATURE. 



Addijon, in his remarks on Mijon's Tour to 

 Italy, page 322, fays, that there is in the Lake of 

 Geneva, in Summer, towards evening, a kind of 

 jflux and reflux, occafioned by the melting of the 

 fnows, which fall into it in greater quantities after 

 noon, than at other feafons of the day. He ex- 

 plains, befides, with much clearnefs, as he gene- 

 rally does, from the alternate eifufions of the ices 

 on the mountains of Switzerland, the intermit- 

 tance of certain fountains of that country, which 

 flow only at particular hours of the day. 



If this digreffion were not already too long, I 

 could demonftrate, that there is no one fountain, 

 nor lake, nor river, fubjeft to a particular flux and 

 reflux, but what is indebted for it to icy moun- 

 tains, which fupply their fources. I fliall fubjoin 

 but a very few words more refpe(fling thofe of the 

 Euripus ; the frequent and irregular movements of 

 which fo much embarrafled the Philofophers of 

 Antiquity, and which may be fo eafily explained 

 from the icv eifufions of the neip;hbourino moun- 

 tains. 



The Euripus, it is well known, is a flirait of the 

 Archipelago, which feparates the ancient Beotia 

 from the ifland of Eubea, now Negropont. About 

 the middle of this flrait, where it is moft narrow, 

 the water is known to flow, fometimes to the 



North, 



