TABLE 3.

Number of ciliates in microcosms^a

Treatment	No. of ciliates per 20 g of soil
	A1	A2
Control	30	>600b
PA	92	>600b
PD	14	>600b
FA	8	30
FD	<0.8c	<0.8c

^aThe number was determined 33 days after treating the Bordeaux A1 and A2 soils with the organic solvents acetone and dichloromethane according to two different protocols: partial treatment protocol with acetone (PA) or dichloromethane (PD) and full treatment protocol with acetone (FA) or dichloromethane (FD) Controls did not receive any solvents.

^bAbove detection range.

^cBelow detection range.