The smoke from the cigarette formed a loop in the air between them.
The smoke would form a scum on contact with water.
The smoke formed a vaguely human female body below the head.
As her candle goes out, the smoke forms a question mark, leaving Montoya in the darkness, alone.
The smoke roiled, then formed into the figure of a lovely dusky woman.
In the condenser, the smoke cools and forms a liquid, aided by the addition of water.
The smoke from the burning houses now formed a dark pillar, miles high.
The smoke formed into a golden globe which seemed to blaze and vanish.
Gradually the smoke formed into the wavering shape of an open scroll.
No steam or smoke formed where the beam struck.