( 212 $ ) 
VIII. An Experiment made at Grefiiam-College, 
Jhewing that the Jeemtngly Spontaneous Afcention of 
Water in Small Tubes open at both ends is the fame 
in Vacuo as, in the open Air .■ By Mr Fr. Hauksbee, 
R%S. 
1 Took three pieces of fmall Tubes of Different bores, 
and fist them in a piece of Cork direftly Perpen- 
dicular , with their Lower Orifices as nicely even as 
I could. The fame Cork 1 likewife fatten'd to a Wire, 
which pafs’d through forae Collars of Leather, included 
in a Box on the Upper Plate of the Receiver $ by 
which means , I could at pleafure elevate or deprefs 
the Tubes without any danger of the Air’s Infinuation. 
(See Fig. 4.) Thus prepar’d, and ting'd Water fet on 
the Plate, the fmall Tubes ( which never had been wet- 
ted) were drawn to the upper part of the Receiver by 
the premention’d Moveable Wire. Then the Air being 
withdrawn, the Tubes were caus’d to defcend ( by the 
fame Wire as drew them up) till their lower ends were 
plung’d juft under the furface of the ting'd Liquid > 
where they no fooner were, but the Water rofe in each 
of them a confiderable height above its furface in the 
Glafs, and higher in the fmaller Tubes than the larger i 
and would retain fuch a quantity as voluntarily arofe in 
them, (if I may call it fo, ) notwithftanding their low- 
er Orifices were drawn out of the Water. Upon letting 
in the Air again they continu’d juft the fame as in Vacuo. 
i found by plunging Tubes of feveral fixes in the ting’d 
