About AD's health and the cold summer.
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About AD's health and the cold summer.
"My health got so bad I could do nothing at Down".
Gives information about migration of male and female birds.
Thanks for [July 1869] issue of Quarterly Review.
Comments on 5th edition of the Origin [1869];
preparation of second edition of Natürliche Schöpfungsgeschichte [1870].
The reception of CD’s theory. Mentions support of Pieter Harting and Michael Sars.
EH’s research on calcareous sponges and plans to publish monograph on them.
Asks for reference to Louis Agassiz’s views on embryos indicating ancestral structures.
Observations on expression and colour of beard and hair in natives of India.
Thanks for procuring eggs.
CD’s health has necessitated his leaving home.
Information about sexes of sheep at time of castration. Mortality of male lambs higher than that of females.
Observations on flies visiting Epipactis.
Introduces his son Alexander; believes CD will find him "more tractable" on certain questions than LA himself is.
Responds to questions about sex ratios at birth and mortality in either sheep or cattle before eighteen months.
Because readers have arrived at different answers to the problem of the rate of increase of elephants, CD offers a rule, used by his son George, for calculating the product for any number of generations.
[Letter erroneously dated June.]
Thanks him for his excellent observations [on Epipactis?]; would like WED to watch for some large insect visiting the plant.
Comments on WO’s paper on Salvia [Pop. Sci. Rev. 8 (1869): 261–73], which he admires.
Received TW's book and approves simplicity and economy of its method of keeping time by using small fixed telescope to reduce star observations. Disapproves of using 'Dominical Letters.' Suggests using Julian dates.
No summary available.
Please review TW's enclosed new book on civil time-keeping: How to Keep the Clock Right. [JH annotation: Answered 7 July.]
WO very gratified by CD’s complimentary remarks on his Salvia article.
Simeon Habel of New York has returned from Galapagos. CD has asked him to send any plants to JDH.
Reading Nägeli convinces him that it is all-important to learn all about polymorphic or protean genera for the "Laws of Variability".
New Zealand genera are interesting and have perplexed him for years.
Has read paper on snakes. Thinks it is not fascination but fear that makes the victim fall into snake’s power.
Asks for a testimonial.