@article {9487,
	title = {Cost Effectiveness and Time Management Evaluation of Intensive Recovery Techniques},
	journal = {Canadian Journal of Archaeology/Journal canadien d{\textquoteright}arch{\'e}ologie},
	volume = {11},
	year = {1987},
	pages = {075-097},
	abstract = {<p>An evaluation of intensive recovery techniques is provided under the scrutiny of time management. This paper first reviews the potential biases inherent in coarse sieving using mammal remains from the Great Basin as an example. The example illustrates quantitatively how the importance of smaller taxa in the assemblage increases as a function of decreasing sieve size. Next the results of a multiple mesh sieving experiment are presented using data recovered from the Ross Site, a multi-component camp site through 12.7, 6.35, 1.59 and 0.85 mm sieves and the frequencies of vertebrate faunal remains, gastropods, insect eggs, plant seeds, and cultural lithics were tabulated. Regression equations describing the percent loss and recovery for both lithics and bones are given. Discussion concerning the recognition rates for tub-water separation, wet sieving, wet froth flotation, and simple flotation are evaluated. This detailed review leads to the conclusian that the simple flotation apparatus of P.J. Watson (17.6 man hours/cubic metre) and the Cambridge froth flotation machine (27.2 man hours/cubic metre) are the most cost effective. This performance could be further enhanced through the use of chemicals. Sorting rates, as gleaned from the literature for a variety of deposits, are also presented. Bearing in mind the considerable variation in site contents we are able to generalize, for the purposes of time management in mitigation, that 100 to 150 man hours are required to sort one cubic metre of processed material.</p>},
	author = {Bruce F. Ball and Peter T. Bobrowsky}
}
