B L O 



B L O 



Z III. of the Powers of Steam Engines working at the Rate of ^Ibs. AYoirdupoife upon every Circular Inch, or S.pilb. upon every 

 Inch of the Steam Pillon, applicable to Blowing Machinery ; and the Areas and Diameters of Blowing Cylinders, requifite to raife 

 various denfities from i^lb to 4lbs, upon each Circular Inch, or from i.9olb. to j.oyalbs. Avoirdupoife upon each Square Inch of 

 r Receiver. 



