Abstract
At the sites of Acquachiara in Italy, el-Hemmeh in Jordan, and Beisamoun in Israel, archaeobotanical recovery was accomplished using flotation systems powered by hand-pumps, as opposed to non-circulating systems or systems powered by electricity or gasoline. These flotation tanks were simple and inexpensive to construct, easily operated by a single individual, highly durable, and easily transported. The speed of water flow was both ample and could be controlled without difficulty. These systems had the capacity to process samples at a rate sufficient to keep pace with large-scale sampling programs at all three sites. In three case studies, we describe two tanks that recycle water and one that does not, list the parts and procedures necessary to construct a hand-pump system, and detail the results of a recovery test that demonstrates the efficacy of this technique. The type of flotation tank described would be appropriate for a range of research projects with various resource constraints, enabling substantial paleoethnobotanical data collection with only a minimal initial investment of time and money.
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