92 



CONTENTS OF THE CATAtOGUE, 



Statics 



Effect of the Air 

 Balances 



Weighing Machines 

 Steel3'ards 

 Bent Levers 

 Spring Steelyards 

 Standard Weights 

 English Weights 

 Scotch Weights 

 Old French Weights 

 New French Weights 

 Ancient and Modern Weights 

 Ancient Weights 

 Modern Weights 

 Apothecaries' Grains 

 Sources of Motion 



Animal Mechanics 

 Aoimal Force 



Immediate Force of Men 

 Performance of Men by Machines 

 Force of Horses 

 Work of Mules 

 Inanimate Force 

 Passive Strength 

 Friction 

 Architecture in General 

 Columns and Walls ; 

 Particular Structures 



Materials. Masonry, Bricks, Pavements 

 Mortars, Cements, and Stuccos 

 Security from Fire 

 Arches, Domes, and Bridges 

 Carpentry in General 

 Beams and Floors 

 Wooden Bridges and Centres 

 Roofs 



ISlating and Tiling 

 Furniture 



Particular Edifices 

 fnclosures and Gates 

 Painting and Preservation of Wood 

 Tools 



Machinery, or Modification of Motion 

 Regulation of Descent 

 iFire Escapes 

 iJacks 

 Application of Moving Forces 

 Economy of Motion 

 Springs 

 Jointed Work 

 Production and Rectification of Rotatory Motioh 



their strongest Forms 



Page 

 159 

 159 

 159 

 159 

 160 

 160 

 160 

 160 

 161 

 161 

 161 

 162 

 162 

 162 

 162 

 164 

 164 

 164 

 164 

 165 

 166 

 167 

 167 

 167 

 168 

 J69 

 172 

 173 

 174 

 174 

 175 

 175 

 175 

 178 

 178 

 178 

 178 

 179 

 179 

 180 

 180 

 180 

 181 

 181 

 181 

 181 

 181 

 181 

 182 

 182 

 182 

 18'2 



