Comments on G. B. Sowerby’s identifications of South American fossil shells [812]. [Notes from more than one original memorandum].
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Comments on G. B. Sowerby’s identifications of South American fossil shells [812]. [Notes from more than one original memorandum].
Comments on a compass diagram designed to show the dip, strike, and anticlinal lines of a geological formation.
Discusses cleavage planes of mineralogical specimens.
Regrets J. D. Hooker did not visit Berlin.
Describes legal difficulties of Ernst Dieffenbach.
Lists species of Infusoria found in dust samples. Discusses origin of Atlantic dust. Discusses Infusoria in cosmetic paint from Tierra del Fuego and Patagonian earth. Thanks CD for samples. Would like samples from sea-bed.
Discusses chemical reaction involving common salt and carbonate of lime.
Reports that he has an offer of an estate of about 325 acres that CD may find suitable.
JDH recommends Augustin de Saint-Hilaire’s Leçons de botanique [1841]. Relates opinions of European botanists on migration and plant distribution.