CONTENTS. 



BOOK VII. 



OF WATER. 



CHAP. I. page 379. 



Of Water in general. 



Water a Comprand Body. Three States of Water. Water ia a fluid 

 State. Florentine Experiment. Vapour. Experiments afcertaining 

 the Force of Vapour. Steam Engine. Ice. 'Phenomena of Freez- 

 ing. Of Thawing. Water expanded in the State of Ice. Immeafe 

 Force exerted by Water on faffing to that State. Why Ice is not 

 ferfeftly Iran/parent. 



CHAP. II. page 401. 

 Hydroftatics. 



Difcoveries of Archimedes in this Branch of Science. Of the Moderns* 

 How Fluids are aded upon by the general Laws of Gravifatioa. 

 Particles of Fluids acl independently of each other. Experiment 

 afcertaining this Principle. Fluids prefs equally in all Diredionf. 

 Cautions necejjary in conftruSiing AqueducJs, &c. to guard cgainft 

 the lateral PreJJure of Fluids. -All Parts of the fame Fluid in Equi- 

 librium with each other. Surfaces of Fluids always in a Plane 

 parallel with the Horizon, Preffure of Fluids in proportion to their 

 Height. Hydrojiatic Paradox. Ejfetfs of Gravity on Fluids of 

 different Denjities. Aclion of Air on the Surfaces of Fluids. Uji 

 of a Vent Peg. The Valenois. The Siphon. A&ion of Fluids on 

 folid Bodies immerfed in them, Why certain Bodies fink and otheri 

 Jwim in certain Fluids. -Bodies that Jwim dif place a Bulk of Water 

 equal to themfelves in Weight but ;/ in Magnitude. The fame Body 

 will Jink in one Fluid, which willfwim in another. The Hydro- 

 meter. Fahrenheit's Hydrometer. Recapitulation of the Docirines 

 rcfpecJing fpecific Gravity. How to make a Globe of Iron Jwim an 

 the Surface of Water. Boats made nf Copper. 



CHAP. III. page 427. 

 Hydraulics. 



Of the Difcharge of Fluids through fmall Aper litres. The Difchargt 



of Fluids through fuccejfive Pipes* Artificial Fountains. Pumps. 



g Tb* 



