Few attempts, however, have been made to prospect systematically for this valuable mineral.
The diet itself had become as much a nullity as the king, and its decrees were systematically disregarded.
Hence a regular commerce in slaves was established, which was based on the " systematically-prosecuted hunting of man," and indicated an entire perversion of the primitive institution, which was essentially connected with conquest.
The fisheries, which are of great value, are carefully supervised and systematically replenished from the State Fish Hatchery at St Paul, and the Federal Fish Hatchery maintained at Duluth, in which particular attention is devoted to the fish of Lake Superior.
In each case the results of the observations may be systematically in error, not only from the uncertain diameter of the moon, but in a still greater degree from the varying effect of irradiation and the personal equation of the observers.