"This study, "Surface Textures of Unglazed Pottery," will record and evaluate a series of experiments performed that can be achieved on unglazed ceramic ware....The problem will be limited to experiments using a red clay from Horatio, Arkansas, a buff clay from Trenton, New Jersey, and a tan clay from Athens, Texas. The specimens will be fired at the temperature of 1643 degrees Fahrenheit...Experiments performed with the three clays will fall into three categories: (1) textures resulting from introduction of foreign matter into the clay (2) textures resulting from surface treatments of green ware and (3) textures resulting from surface treatments of bisque-fired ware. The experiments will be described and the fired clay specimens -- tiles 2"x2"x1/4" will be evaluated according to aesthetic and practical standards. Plates showing fired clay tiles resulting from the experiments will accompany the text [in volume 2]."-- leaf 1.

Através da análise da variabilidade da indústria cerâmica nos espaços intra e intersítios em dois assentamentos a céu aberto relacionados a grupos ceramistas pré-coloniais filiados às tradições Aratu e Uru e localizados no médio curso do rio Tocantins, este estudo objetivou fornecer parâmetros para o debate acerca de processos de interação cultural entre estes grupos ceramistas, que segundo alguns autores teriam motivado e configurado a ocupação humana pré-colonial do Brasil Central desde pelo menos o século X da era Cristã. Por meio dos testes estatísticos de Cluster e Componente Principal tal variabilidade é avaliada no intuito de compreender a organização do uso do espaço intra-sítio, bem como o grau de interação presente entre os assentamentos estudados / Through the analysis of the variability of the ceramic industry in the intrasite and intersite spaces in two open air pre-colonial settlements related the ceramist groups associated to the traditions Aratu and Uru and located in the middle course of the Tocantins River, this study objectified to supply parameters the debate concerning processes of cultural interaction between these ceramist groups, that according to some authors would have motivated and configured the pre-colonial occupation human of Central Brazil since at least century X. By means of the statistical tests of Cluster and Principal Component such variability is evaluated in intention to understand the organization of the use of the intrasite space, as well as the degree of present interaction between the studied settlements

Através da análise da variabilidade da indústria cerâmica nos espaços intra e intersítios em dois assentamentos a céu aberto relacionados a grupos ceramistas pré-coloniais filiados às tradições Aratu e Uru e localizados no médio curso do rio Tocantins, este estudo objetivou fornecer parâmetros para o debate acerca de processos de interação cultural entre estes grupos ceramistas, que segundo alguns autores teriam motivado e configurado a ocupação humana pré-colonial do Brasil Central desde pelo menos o século X da era Cristã. Por meio dos testes estatísticos de Cluster e Componente Principal tal variabilidade é avaliada no intuito de compreender a organização do uso do espaço intra-sítio, bem como o grau de interação presente entre os assentamentos estudados / Through the analysis of the variability of the ceramic industry in the intrasite and intersite spaces in two open air pre-colonial settlements related the ceramist groups associated to the traditions Aratu and Uru and located in the middle course of the Tocantins River, this study objectified to supply parameters the debate concerning processes of cultural interaction between these ceramist groups, that according to some authors would have motivated and configured the pre-colonial occupation human of Central Brazil since at least century X. By means of the statistical tests of Cluster and Principal Component such variability is evaluated in intention to understand the organization of the use of the intrasite space, as well as the degree of present interaction between the studied settlements