"Couldn't get up speed enough," answered the young inventor.
He reached it and then Ringrose heard him open out and get up speed.
With but three minutes left and some distance to go, the great dirigible balloon got up speed and rushed for the goal.
Peeping out, he saw his train get up speed again and disappear at a great pace.
I asks him, sort o' sarcastic, 'or are ye gittin' up speed enough to run on a mile or two after ye hit the shore?'
Twice he circled the field in order to get up speed and reach sufficient elevation.
Before it could get up speed one of the Indian nobles dashed at it with wild yells and speared it again.
The Astronef dropped to the level of the ring of Martian vessels, which had now got up speed again.
But just as she really got up speed the big chap under the oak stood up and spoke.
Remember that it will take as long to stop as it does to get up speed, and that we must be careful not to ram them.