( ) 
II. An Account of form Experiments [hown before 
the Royal Society 3 with an enc^uiry into the 
canfe of the Afcent and Sulpenfon of Water in 
Capillary Tubes, James Jurin, M.D, and 
fs,, Soc. S. 
S Ome Days ago a Method was propofed to me by 
an ingenious Friend, for making a perpetual Mo* 
tion, which feem’d To plaufible, and indeed fo eafily 
demonftrablcfrom an Obfervation of the late Mr. Hdrvks^ 
hee, faid to be grounded upon Experiment, that, tho* 
1 am far from having any Opinion of attempts of this 
Nature, yet, I confeft, I could not fee why it (hould 
not fucceed. Upon tryal indeed I found my (elf difap- 
pointed. But as fearches after things impoflTible in 
themfelves are frequently obferv’d to produce other 
difcoveries. unexpeded by the Inventer; fo this Pro* 
pofal has given occafion not only to redify fome mi- 
(lakes into which we had been led, by that ingenious 
and ufeful Member of the Royal Society above named, 
but likewife to dcted the real Principle, by which 
Water is rais’d and fufpended in Capillary Tubes, 
above the Level. 
Friend* s Propofal was as follows* 
Fig i. Leti4^Cbea capillary Siphon, compos’d 
of two Legs A B C, unequal both in length and 
Diameter, whofe longer and narrower Leg AB ha- 
ving its orifice A immerft in Water, the Water will 
rife above the Level, till it fills the whole Tube A B, 
and will then continue (ufpended. If the wider and 
Ihorter Leg B C, be in like manner immerft, the Water 
Bbbbbb will 
