Here is another spiral similar in every respect to spiral C.
Some cutouts have a spiral spring attached to the cutout armature.
Lingua spiralis: the spiral tongue of Lepidoptera: see glossa.
Spiral: rolled up like a watch spring, or twisted like a cork-screw.
These are covered and surrounded with boards, fastened on to protect the spiral.
Very often in place of writing, all I could get from them would be spiral lines.
There is much controversy as to the nature of these spiral nebul.
In the massive type, the development seems to be a spiral one.
The spiral motion has the effect of minimizing this difficulty.
It would still take four hours to get down, in a spiral of deceleration.