text: Thus it seems likely that originally the Hamites were members of the White Caucasian race and that they had a culture centered around animal breeding. The Negroes, on the other hand, are part of the dark races (perhaps physically related to the Melanesians) and are basically agriculturists, while Bushmen and Pygmies (assuming that they may be grouped together) are often regarded as members of a racial stock of small-statured peoples, the vestiges of which survived in a few remote corners of the south Asiatic island world, e.g., Negritos of the Philippines. The culture of these people is economically based on hunting and food gathering. The known facts do not contradict such theories, neither do they fully support them.  
  All that safely may be said is that these three main African groups do not form a homogeneous racial or cultural group. Interrelations between them have been great, since, as the Negroes have penetrated the desert lands of the Hamites far to the north, so the Hamites have invaded Negroland to the south. These contacts, which at times have been very intimate, have left their physical as well as their cultural impacts upon the people thus encountered.