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.
Would like to borrow the pamphlet on variation [Frédéric Gérard, "De l’espèce dans les corps organisés" (1844), extract from Dictionnaire universel d’histoire naturelle, ed. C. D. d’Orbigny].
Glad to hear Humboldt’s views on migration. CD believes we cannot "put any limit to the possible and even probable migration of plants".
Wants good book on plant morphology.
JDH recommends Augustin de Saint-Hilaire’s Leçons de botanique [1841]. Relates opinions of European botanists on migration and plant distribution.
Has received pamphlet from JDH [John Murray, Strictures on morphology (1845)].
Hopes JDH will enjoy Edinburgh.
Has just finished Isidore Geoffroy Saint-Hilaire on animal monsters [Anomalies de l’organisation chez l’homme et les animaux (1832–7)], "and a nasty curious subject it is".