_Ferns Wanted._--Specimens of the following rare ferns are much wanted to
complete a collection:--_Woodsia ilvensis_, _Woodsia alpina_, _Cystopteris
montana_, _Lastrea cristata_, _Lastrea recurva_, _Lastrea multiflora_,
_Asplenium alterniflorum_, _Trichomanes speciosum_.
The undersigned will feel very much obliged to any charitable person,
residing near the _habitat_ of any of the above-mentioned ferns, who would
take the trouble to forward to him, if not a root, at least a specimen for
drying, he need scarcely say that any expenses will be most cheerfully
defrayed.