_Vacuum_, Torricellian, experiment with, i. 291.
electrical experiment in, 317.
_Vapour_, electrical experiment on, i. 343.
_Vapours_ from moist hay, &c. easily fired by lightning, i. 215.
cause of their rising considered, ii. 46, 49.
_Vanity_, observation on, i. 2.
_Varnish_, dry, burnt by electric sparks, i. 199.
_Vattel's_ Law of Nations, greatly consulted by the American congress,
iii. 360.
_Vegetable_ diet, observed by Franklin, i. 20.
abandoned by Franklin, why, 47.
_Vegetation_, effects of, on noxious air, ii. 129.
_Velocity_ of the electric fire, i. 319.
_Virtue_ in private life exemplified, iii. 427.
_Vernon_, Mr. reposes a trust in Franklin, which he violates, i. 44.
_Vis_ inertiæ of matter, observations on, ii. 110.
_Visits_, unseasonable and importunate, letter on, iii. 432.
_Unintelligibleness_, a fault of modern singing, ii. 345.
_Union_, Albany plan of. See _Albany_.
_Union_ of America with Britain, letter on, iii. 239.
_United_ states of America, nature of the congress of, iii. 550*.
_Voyage_, from Boston to New York, i. 27.
from New York to Philadelphia, 28.
from Newfoundland to New York, remarks on, ii. 197.
crossing the gulph stream, journal of, 199.
from Philadelphia to France, 200, 201.
from the channel to America, 202.
to benefit distant countries, proposed, 403.
_Vulgar_ opinions, too much slighted, ii. 146.