CONTENTS OF THE CATALOGUE. 95 



Page 



IThrust of Earth 232 



13uilding in Water , 232 



Cisterns. Casks 233 



Dii^es and Embankments 233 



Harbours 233 



Docks 233 



Sluices 233 



Management of Rivers ' 234 



Bridges . 234 



VVeres .234 



Canals 234 



Locks 235 



Conveyances substituted for Locks 235 



Aqueducts. Irrigation 235 



Drains 235 



Modificalion or Application of Hydraulic Forces 235 



Hydrodynamic Measures 235 



Force of Water 236 



Air or Wind 238 



Wind and Water combined. Seamanship in General 23^ 



Bffectsof Wind and Water 240 



Naval Architecture, and Forms of Ships 240 



Parts of Ships and of their Rigging 241 



Masts 241 



Rudders 241 



Sails 241 



Blocks , 241 



Cables 241 



Anchors 241 



Oars 242 



Particular Kinds of Ships and Boats 242 



Bridges of Boats 242 



Modes of Rowing and Impelling Boats and Ships 242 



Towing 243 



Modes of Raising and removing Ships 243 



Preservation of Ships and their Crews 243 



Swimming and Diving 243 ■ 



Instruments subservient to Seamanship 244 



Measuring a Ship's Way 244 



Sounding 244 



Measures of the Wind 244 



Marine Quadrants 245 

 Hydraulic Instruments and Machines, for Producing Motion in 



Fluids 245 



Regulations of Discharge 245 



Pipes and Simple Fountains 245 



|Appendages to Pipes. Valves, Stopcocks, and Filters 246 



Machines for liaising Water. Pumps of all Kinds, Fiie Engines, 



and Fountains not simple 247 



Pneumatic Machines ^ 252 



Machines simply Pneumatic 252 



Bellows, Fans, and other Mechanical Ventilators 252 



Au Pumps, Condensers, and Air Guns 253 



