JSdifcettanea Curiofa. 30 3 



will float in a Liquor fpecifically lighter than 

 it felf. But that a heavy Body, as Mercury 

 or Iron may have its Parts reduced to that 

 Minutenefs, that their Gravity or Tendency 

 downwards, is not ftrong enough to feparate 

 ' the Coheflon or Union of the Parts of a Li- 

 quor, will be manifeft, if we confider, that 

 the Refiftance made by the Medium to a fal- 

 ling Body, is according to the Superficies of 

 the Body } but as the Body decreases in Bulk, 

 its Superficies does not proportionably de- 

 creafe, thus a Sphere of an Inch Diameter, 

 has not eight times lefs Superficies than a 

 Sphere of two Inches Diameter, tho' it have 

 eight times lefs Bulk, and confequently paf- 

 ling through a Medium, as fuppofe Air or 

 Water, the Sphere of an Inch Diameter is, 

 proportionably to its Bulk, more refilled, than 

 a Sphere of two Inches Diameter in propor- 

 tion to its Bulk, and hence it will come to 

 pafs, that at laft a Body may be reduced to 

 that Minutenefs, that its Gravity preffing 

 downwards (which is according to its Bulk) 

 may be lefs than the refiftance of the A4edi- 

 um 0 which operates on the Surface of the 

 Body \ feeing as I faid before, the Surfaces 

 of Bodies do not decreafe fo faft as their 

 Bulks, thefe decreafing in a Triplicate, but 

 thofe in a Duplicate Ratio : of the Bodies Dia- 

 meters. 



This Account does not at all oppofe the 

 Experiment of a Menflruum over the Fire, 

 being able to diflblve or fuftain a greater 

 Quantity of a heavy Body} for the Reafon, 

 of this, as 'tis given by my Brother, does not 

 Contradict my Notion. The Account like- 

 wife 



