Dear Taxacommers, I wonder if it is possible to conduct a stable isotope analysis with museum specimens that were fixed with formalin and stored in alcohol. Michael -- Neu: GMX FreeDSL Komplettanschluss mit DSL 6.000 Flatrate + Telefonanschluss für nur 17,95 Euro/mtl.!* http://dslspecial.gmx.de/freedsl-surfflat/?ac=OM.AD.PD003K11308T4569a