( f ?* 5 ) 
very plain, allowing the Afcent of Water in fmall Tubes, 
and between the Surfaces of nearly contiguous Planes, 
to be explain’d from the Power of Attradion, that one 
Surface has to another at fuch a nearnefs fas I fee no 
Reafon to doubt it;) For the Drop of Oil moving on 
towards the contiguous Surfaces, comes to enlarge its 
fpace, and touches the Planes in more and more Parts, 
as it approaches nearer and nearer the touching fide. 
Thus in the whole Progrefs of its Motion, it is conti- 
nually encreafing in its Surface, and confequently the 
Power of Attradion tnuft encreafe in proportion to 
that Surface $ fo that the Celerity of its Moiion muft 
neceffarily be augmented. This Experiment feems very 
powerfully to confirm the Experiments made before on 
the .fame Subjed, from the gradual lncreafe of the Mo- 
tion of the Drop 3 reprefenting thereby the feveral Ap- 
pearances of the Afcent of Water in different fiz’d 
Tubes, or between Planes wbofe Surfaces are placed at 
different diftances, the flower Motion reprefenting thofe 
Experiments made in larger, and the fwifter in fmaller 
Tubes 0 the fame to be obferved indifferent diftanc’d 1 
Planes. 
I have fince repeated the fame Experiment in vacuo, 
where, in all Rtfpeds, it anfwered as in the open Air; 
which is a plain In icatiofl, that the Prefence of the 
Air has nothing at all to do in producing this Pheno- 
menon. 
ERRATA : 
I N Phil. Tranlad. Numb. 331. in the Contents pag. 
309. 1. 19. and pag. 324. 1. 2. for St. Margaret’s read 
St* Maries. 
■LONDON: Printed for B. Clements at the Half' 
Moon , and W lnnys at the Princes- Arms, in St Pauls 1 
Church-yard \ and D. Brown without Temple-Bar. 
