[ H5 ] 
the Fire; as it did afterwards, when the Inclination 
of the fupporting Tubes was alter’d, fo as to afeend 
towards the Fire. 
I made feveral other Experiments, with regard to 
the Situation of the Tubes to the Fire, with regard 
to the Quantity of Fire fufFered to come at the 
Tubes, and with regard to Attraction and Repulfion, 
which I will not trouble you with at prefent : Only 
obferve, that, when the Tube had four others under 
it, all fupporting, one near each Extremity, and one 
on each Side of its Centre, no Motion at all was 
perceived ; and when two of them on the fame Side 
of the Centre were taken away, the fupported Tube 
moved into an oblique Situation with regard to the 
Fire, the unfuppotted Half receding from the Fire. 
Upon the Whole, it appears fufficiently plain, that 
the Stream of Air up the Chimney is not the Caufe 
of the Rotation : Another may be afligned, Em- 
ple and eafy ; but as 1 have already faid too much,, 
it will be better to make it the Subjed of another. 
Paper. I am, 
SIR, 
Tour mofl Obedient 
Humble Servant, 
Granville Wheler., 
II. 
