Silver salts of long chain carboxylic acids are prepared from long chain carboxylic acids by sequential addition of at least two different alkali metal hydroxides, one of which is lithium hydroxide, followed by converting the mixture of alkali metal carboxylates to silver carboxylates. The inverted motion base includes a first cable connected to the carriage and wound about a first drum to raise and lower the carriage, and left and right load carrying arms, each connected to a respective left and right ends of a transverse support member. The privacy access level settings comprise an anonymous one-time access and a non-anonymous one-time access.