The determination in the case of solids lighter than water is effected by the introduction of a sinker, i.e.
Nitzsch, Dillmann, Ritschl and Sinker are convinced that the book was not a translation but was written originally in Greek.
If W be the weight of the experimental solid in air, w the weight of the sinker in water, and W, the weight of the solid plus sinker in water, then the relative density is given by W/(W+w - Wi).
A number 10 line weighs the same whether its a fast sinker or a floater.
- Sinker, Testamenta XII Patriarcharum (1869); [this work gives b in the text and a in the footnotes; subsequently (1879) Sinker issued an Appendix with variations from cg]; Charles, The Greek Versions of the Testaments of the XII.