Did you observe the window at all until after you heard that first sound which was a backfire or firecracker, at least you thought it was?
You have referred to three explosions that--one you thought was a backfire or a firecracker.
A backfire or an officer giving a salute to the President.
I felt it was, because it was too sharp for a backfire of an automobile.
After--as I said before, on the first shot, it was too sharp to be a backfire of an automobile.
I heard one shot and then a pause and then this repetition--two shots right behind the other, and I thought it was backfire from a car and I said, "Someone shot the President.
A handful of men were still grouped around Curt, working until the last moment to spread the backfire as far as possible.
We can start a backfire and burn off as much ground around here as possible.
The crest of the hill above them was now outlined in a strong, crimson and the shadowy forms of the workers were visible as they hastened from one backfire to another.
There was a sharp report under the bus, like a gunshot or the backfire of the exhaust.
To the best of your ability to recollect and estimate, how much time elapsed from the first noise which you have described as being similar to the backfire of a motor vehicle until you heard the second noise?
Well, when we were going down Elm Street, I heard a noise that I thought was a backfire of one of the motorcycle policemen.
Just to make sure our backfires don't backfireon us," Dick Fellows said wryly.
I then discovered that the engine would occasionally backfire out into the boat and that gas was escaping past the piston rings into the base of the engine and from there into the boat.
In case of a backfire, the check valve automatically closed and the gases from the backfire were caught in the induction tank, from which they were drawn out on the next stroke of the engine.