ANALYTICAL VIEW. 



- PRINCTPIA. BOOK SECOND. 



CHAPTER I. 



THE ELEMENTARY PRINCIPLES OF HYDROSTATICS, AND THE 

 LAWS OF DENSITY OF AN ELASTIC FLUID COLLECTED ROUND 

 A CENTRE OF FORCE. - 



I. Elementary Principles of Hydrostatics. 



1. What a fluid is, the terms viscosity, solidity, &c. 



2. \Vhat the foundation is on which the theory of Hydrostatics is built. 



Newton, xix. 



3. The fundamental equation by which we know the properties of a fluid 



in equilibrium. Note I. 



4. Three consequences of this equation. Note I. 



(1.) That there must in all cases be a certain relation among the forces. 

 (2. ) Level surfaces are surfaces of equal density. 

 (3.) Level surfaces are surfaces of equal temperature. 



5. Newton, xx., Fliuds under the action of gravity only. 



II. The Law of Density in a compressible Fluid under the Action of a central 



Force. 



1. Solution of the question defect in the application to physical ques 



tions, Newton, xxi. xxn. &c. 



2. First application. Measurements of heights. Note II. 



Second application. Form of our atmosphere, the Zodiacal light not 

 part of the Sun s atmosphere. Note II. 



I. 1. &quot; HYDROSTATICS&quot; is that part of statics which treats 

 of the equilibrium of fluids. A fluid ?&amp;gt; any body whose parts 



M 4 



