The reconstructions of the perishable objects shown in the drawings are generally in keeping with the culture in which they are exhibited but cannot be vouched for as to their detailed form. The handle of an adze, the shape of a cabin roof, the headdress of a tribal chief each served the purpose for which they were made and their exact form was and is of no more consequence in the culture than the fashions in women’s hats or the fins on an automobile are in our own. The details in cultures serve to set them apart from each other; it is the basic and significant features and subfeatures that determine relationships and permit the most useful classification. The study mentioned above is still incomplete, but results so far obtained indicate: 1. That man in the same stage (and substage) of cultural development _tends_ to invent and employ the same broad social and spiritual features, regardless of surroundings. 2. That where significant differences arise between substages of the same stage, they are (at least sometimes) linked with peculiarities of climate and/or natural resources which the people have seized upon and exploited to the improvement of their economic situation. 3. That many details within these broad types of economic, social and spiritual features appear to vary unpredictably within the range of available possibilities. The stage and criterion for each were proposed in an earlier issue (No. 6) of this series, _Man’s Venture In Culture_, (Deuel 1950, pp. 5-12) as: 1. _Natural Man_ (_Protocultural_), when “man” presumably employed sticks and stones as implements and weapons. 2. _Self-Domestication_, following the discovery of the principle of the conchoidal fracturing of flint and its control, and the invention of tool and weapon types. 3. _Farming_ or _Food-Raising_, due to the discovery that grains (grasses) and food-draft animals could be bred and raised in captivity. 4. _Inanimate Power Machine_ (_Machine Age_), after the discovery of the availability of water and wind as sources for energy and the adaptation of animal-driven machines to utilize them. Man in the wild or Protocultural stage is thought not to have reached the Americas. The oxlike mammals were not domesticated in America for drawing ploughs and vehicles, turning grain mills or to serve as a continuous food supply source. Consequently, we are concerned in the following discussion only with peoples in the Self-Domestication stage and the Plant-Raising substage of Farming.