Trait e da Mowvement des eauxet des autre s Corps flui- 
des par feu Mr. Mariotte, J Paris. Ai. \6%6. 
O^am. 
Tf^His Book having been defigned by the Ingenious 
1 Mr. Mariottey and by him in a great Meafure com- 
pleated ^t his Death ; has had the good Fortune to receive 
the laft hand fi'om Mr. De la Hire^ whok great abilities in 
the Mathematicks^ are too well known to need mention in 
this place. The whole is divided into five Parts, and each 
Part again into Difcourfes or ChapteTS ; the firft Part con- 
tains J Difcourles, whereof the firft is about the feveral Pro- 
perties of fluid Bodies , as their Glaciation^ Evaporation, 
Dilatation upon Heat, and admiffion of the Air into their 
Pores, &c. The 2d. is about the Original of Fountains, 
which he deduces from the Rains that fall, and fink into the 
Earth, till they meet with a Clayey or Rocky Soy!, which 
being not able to pais, they runalongfl:, till they find their 
way out into the Air, where they become Fountains. And 
to prove the quantity of Rain Water, fufficient to furnafli 
the Rivers^ he fhews by Experiment that there falls in the 
Countries about the T^ountains of the ^z^^-, atleafl: 7 time^ 
as much Water, as the laid River evacuates. The ^d. is 
about the Origine and Caufe of Winds, of which he aP 
fignes J general and 4 particular Caufes, the firft of the ge- 
neral, is the Diurnal Motion of the Earth 3 the leconH is 
the Condeniation and Rarefa£tion of the Air, caufed by 
the heat of the Sunn. The ^d. is from the Moons refpe£l 
to her Apg^on or Perigaon^ whereby fhe fbm.etimes rifes 
from, other times defcends towards the Earth. The pax- 
ticular caufes are, ijl. the extraordinary rifing of therVa- 
pours and Exhalations out of certain places of the Ear|;j^^ 
zd^ 
