In J. Appl.Crys. 26, 615-619 "Crystal handling at low temperatures"
two oils are described. These are Hostinert 216 and RS 3000 both from
Riedel-de-Haen. They seems to work with great succes for small molecule
crystals. Does any one have experience with these oils for macromolecular
work. What is your favourite oil anyway?