"People are principally interested in taxes, which are continually increasing."

Since they were principally interested in trade with the natives, the Miskitos reacted more favorably to them.

He was principally interested in signing the world's best runners for the race.

The Soviets are principally interested in setting up joint ventures.

He was principally interested in what the town looked like, and keen that everything should enhance its appearance.

The landowner, in many cases, was principally interested in his rental income.

Researchers are principally interested in the measurement, causes and consequences of being happy.

De Gubernatis describes him as principally interested in the effects of sunlight.

The Italian group has been principally interested in following the dynamics of population growth among the feral animals.

Of all insect orders he was principally interested in Lepidoptera.