This stream flows north-westward from the last lake and vanishes underground within 3 m.
We find Prester John in one more phase before he vanishes from Asiatic history, real or mythical.
If all the water be frozen, we have the vapour pressure curve of ice OB; while, if the pressure be raised, so that all the vapour vanishes, we get the curve OC of equilibrium between the pressure and the freezing point of water.
Again, the form is such that if it be taken away the nature infallibly vanishes...
This will be recognized as the resultant of the two linear forms. If the two linear forms be identical, the umbral sets a l, a2; b l, b 2 are alternative, are ultimately put equal to one another and (ab) vanishes.