A gas shell was also designed and approved in 1921, although never put into production.
He wasn't about to unbutton and look around, either, not with gas shells still coming in.
The Japanese continued to press their attacks with this air support, and in the afternoon fired large numbers of tear gas shells.
Some of those had been gas shells, too.
"If one of those gas shells went off, you'd be responsible for perhaps millions of deaths."
Police fired tear gas shells towards the gate to warn the students.
It made no sense, being within the gas shell blown off by a nova.
This problem was solved in 1916 when gas shells were produced for use with heavy artillery.
Before its final collapse, this star would have converted any nearby planet into a gas shell.
To add to the misery, for the last ten hours of bombardment, gas shells were added.