Requests further information on subsidence of flagstones because of action of worms.
Showing 21–39 of 39 items
Requests further information on subsidence of flagstones because of action of worms.
Philosophical Club dinner.
Lyell contradicts W. B. Carpenter on current in Straits of Gibraltar.
James Orton’s report on fossil shells found by L. Agassiz 2000 miles up the Amazon. Their identification disposes of the glacial hypothesis.
No news yet from Gladstone on Ayrton affair.
Sends a paper on denudation ["On modern denudation", Trans. Geol. Soc. Glasgow 3 (1871): 153–90].
Sends notes on left- and right-handedness from observations made on his eldest son as an infant.
Sends description and measurements of the 18th century courtyard pavement of his house, the stones of which have sunk as a result of earthworm action [see Earthworms, pp. 192–3].
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.
Sends three sheets but keeps one. Suggests looking at a curved field on the way to Orpington.
Action of earthworms and weather on surface soil of old earthworks and fortifications.
Varying depth of top-soil in a ridge-and-furrow field with a depression.
After reading Descent sends two instances of men and animals using the same muscles to express similar emotional states.
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].
Gives his account of H. M. Butler’s apparently inherited habit.
Discussion of H. Spencer’s views on the origin of music.
Gives publication date for J. C. Lavater, L’Art de connaître les hommes, 1806–9, edited by J. L. Moreau. The first four volumes appeared in 1806.
Sends abstract, and will bring book on Saturday.
Summarises her theory about expression in music.
Sends MS chapter on voice from Expression to HL for examination.
Agrees with R. B. Litchfield about Herbert Spencer’s views on speech and music.
Thanks CD for papers he sent his wife. They will help her pass her time as an invalid.
Describes fly-catching activity of Drosera longifolia.
Experiments on Papilio asterias; sex of adult determined by length of larval feeding time.