TABLE OF OO^TEKTS. 



INTRODUCTION. 



ABT. PACT 



L Upon mathematical investigations generally xxxii 



II. Analytical and geometrical mechanics xxxiii 



IIL Geometrical statics xxxv 



IV. The graphical calculus xxxvii 



V. Graphical representation xl 



VI. Graphical statics .- xli 



VII . The methods and limits of the graphical statics xliii 



VU.I. The modern geometry xlv 



IX. The modern geometry in engineering practice xlviii 



X. Practical significance of the graphical statics xlix 



XI. Literature upon the graphical statics li 



Graphical dynamics liv 



PART L GENERAL PRINCIPLES. 

 CHAPTER I. 



FORCES IN SAME PLANE COMMON POINT OF APPLICATION. 



1. Notation Representation of forces by lines 1 



2. Resultant of two forces 2 



3. Resultant of any number of forces 2 



4. Conditions of equilibrium 3 



5. Properties of force polygon 3 



6. Order of forces in force polygon a matter of indifference 4 



7. Forces acting in same straight line 5 



8. PRACTICAL APPLICATIONS 5 



9. Braced semi-arch 6 



10. Roof truss 8 



11 . Diagram for wind force 8 



12. Application of method to bridges 11 



1 3. Braced arch 12 



14. Bitter's "Method of Sections" 14 



CHAPTER II. 



FORCES IN SAME PLANE DIFFERENT POINTS OF APPLICATION. 



16. Resultant of two forces 16 



17. Case of forces parallel 18 



