2^9 the ejpet of water oh machinery. Oct. ij^ 



From a consideration of this table, it clearly ap- 

 pears, that the supposed Englilli genitives perform, 

 in all cases, a double office, exactly analogous to that 

 which is performed by the word his ; which, by not 

 having been adverted to, has augmented the perplex- 

 ity that these words have occasioned in our gramma- 

 tical arrangements. 



To be continued.. 



ESSAY ON WATER. 



CONSIDESJED AS A MOVING POVVXa ON MACHINIRY. 



Continued from fi. 210. 



If a considerable weight is appended to one side of a 

 wheel that rests upon a pivot in the center, and none 

 at all upon the other side of it, it will follow that the 

 side with the weight appended to it will always de- 

 scend, and the light side rise upwards, so as to com- 

 municate a continued rotatory motion to the wheel. 



It is in th'3 way that water becomes a moving 

 power, by its dead weight ; for if buckets be so fixed 

 upon the wheel as to have their mouths upwards, 

 and open to receive a stream of water as they pafs 

 under it, at, or near the top of the wheel on one side, 

 so as to descend fivll, the mouth of these buckets 

 must be turned downwards at the bottom of the wheel, 

 if immov^eably fixed upon it, so as to ascend empty. 

 The inequality of weight between the two sides of 

 the wheel must thus continue as long as the water 

 flows into the buckets, and of course the rotatory mo» 

 tion of the wheel must continue also. 



