double in number

The Americans doubled in number every 25 years by natural increase.

These double in number for the first three days and mature.

Many poor nations will double in numbers within thirty years.

Next year, its Newark productions will double in number, to 40.

Asians more than doubled in number, growing by 281,218 - to 512,719.

On an unprotected surface, bacteria can double in number every 20 minutes.

The Corps obliged, and the band over doubled in numbers by 1886.

They were doubling in numbers with every step.

Sentinels, doubled in number, were placed at all the outposts.

Under his leadership, the Association membership has doubled in number and registrations have almost tripled.

Except that he didn't have a gun and they'd doubled in number while he watched.

The storm was increasing in violence, and the hailstones seemed to double in number.

It even leaves out barn owls, which have doubled in numbers in the past 10 years.

As the perimeter guards double in number at night, Michael says that a night-time escape is impossible.

The language had been growing pell-mell, identifiable words and their uses doubling in number from the Renaissance.

By the year 2000, consumers earning more than $50,000 a year will double in number, he said.

Not only have tigers doubled in numbers, but other species and habitats have benefited.

The formerly few tribes of Pyrginae have almost doubled in number.

Mr. Switon says the crosses will soon double in number.

In the last two years, outdoor wood boilers have doubled in number, to about 150,000 nationwide.

The guards, now doubled in number, gestured at the machine, their shouts drowned out by the rotors.

This allowed the interior to be re-arranged, leaving more room at the top of the case and thereby allowing the drives to double in number.

Legacy radiators designed for these higher temperatures may have to be doubled in numbers when retrofitting a home.

Within three decades the fellowship of the RSC doubled in number.

Parochial schools and diocesan priests more than doubled in number, and increases were also made among religious.