Thanks for Earthworms.
Importance of wind in soil formation and transport.
Showing 1–8 of 8 items
Thanks for Earthworms.
Importance of wind in soil formation and transport.
Interested in the fossil scorpions found by AG in the Lower Carboniferous strata of Scotland. Hopes further searches will yield more land animals and offers to subscribe funds to such a search if it falls outside the Geological Survey’s work.
Thanks CD for offer of assistance in exploration of Eskdale beds. Describes finds of scorpions and unusual amphibians.
CD expresses his gratification that a geologist of AG’s standing and influence subscribes to the idea of the mutability of species.
Sends a paper on denudation ["On modern denudation", Trans. Geol. Soc. Glasgow 3 (1871): 153–90].
His admiration for the papers of AG [see 8119].
Relates his recent discovery that earthworms have brought to surface no less than 161 tons of dry earth over an area of 10 acres, thus creating the conditions for significant denudation. Would welcome information about the persistence of ridges and furrows in old pasture lands ploughed centuries ago. Do they run down the slopes or transversely? Refers to [A. C.] Ramsay, [James] Croll, Elie de Beaumont, and [Henry] Johnson.
Action of earthworms and weather on surface soil of old earthworks and fortifications.
Is obliged for valuable letter [see 8123] and encloses queries about the manner of gradual obliteration of ridges or furrows in old pasture lands in various parts of England.
Gives details of his experiment to test his observations of the downward flow of worm-casts.
Refers to [Lyon] Playfair, [A. C.] Ramsay, and AG’s edition of [J. B.] Jukes, [A student’s manual of geology, 3d ed., 1872].