The Stargardt catalogue description notes that the letter was accompanied by a list of eight substances from CD’s collection, described in detail, which might be useful in Christian Gottfried Ehrenberg’s research on the Infusoria.
Delighted to be able to contribute Infusoria to ED’s "great countryman Ehrenberg". Includes a list of eight substances from his collection described in detail, which Ehrenberg might find useful in his researches.