We will not say whether the old masters painted this cirrus or not.
There must be text-books on how to tell the cumuli from the cirrus.
The third cirrus is about one third longer than the second cirrus.
In the sixth cirrus there are on each segment four pairs of spines.
The rami of the first cirrus are a little unequal in length.
This is the cirro-stratus, and is a development of the cirrus, but it does not fly so high.
Cirrus clouds, or others, dissolve, or cirrus have tails down.
Soon the ship looked, to all outward appearances, like a cirrus formation.
The cirrus may last a few minutes only, or continue for hours.
The Cirrus—so called from its resemblance to a curled lock of hair.