The site was occupied in very early times, as the discoveries since 1882 show.
Recent discoveries have done little or nothing for treatment.
Besides, if any dramatic discoveries were made, with Fred O'Connor on the job, Dean would learn the results soon enough.
It was aided very materially by the dearth of workers consequent on the gold discoveries, when every man could command his own price.
In 1883 he went to Kiel, becoming Privatdozent, and there he began the studies in Maxwell's electro-magnetic theory which a few years later resulted in the discoveries that rendered his name famous.