Rigorous business, as in the strictest of Universities examining for Degrees, would be nearer the definition.

Sometimes, when a new manoeuvre or tactical invention of importance is to be tried by experiment, you will find for many miles the environs of Potsdam, which is usually the scene of such experiments, carefully shut in; sentries on every road, no unfriendly eye admitted; the thing done as with closed doors.

Nor at any time can you attend without leave asked; though to Foreign Officers, and persons that have really business there, there appears to be liberality enough in granting it.

The concourse of military strangers seems to keep increasing every year, till Friedrich's death.

[Rodenbeck, iii.