XXSn IKTRODUCTIOK* 



grand trial would have enlightened thote 

 engineers who are entrufted with the care 

 of the like operations in the ports of 

 France. 



When great hydraulic works are under* 

 taken in countries periodicaUy expofed to 

 violent winds and hurricanes, the execution 

 of them ought to be condudted with as 

 much fpirit and expedition as pollible, in 

 order to oppofe a great refinance to the 

 combined force of the wind and the waves. 



One mufl have experienced a hurricane 

 to form a proper idea of that formidable 

 meteor. A hurricane is almoft always ac- 

 companied with rain, thunder, and an earth- 

 quake. The atmofphere appears to be on 

 fire, and the wind_blow8 with equal violence 

 from every quarter of the horizon, A 

 hurricane is a kind of fpout, which feems to 

 threaten that part of the earth upon which 

 it falls with entire deftrudion. It is at leaft 



under 



