To J. D. Hooker 11 September 1
My dear Hooker
The magnificent & awful Box of Books arrived quite safely this morning, & I thank you heartily for so valuable assistance.2
I shall not, of course, try to do all, but will invest a handsome sum with our Schoolmaster,3 & will see that the Books are covered & are taken scrupulous care of. But it is slow work, & if I keep the Books too long you must order them home. I have not yet fixed what to begin with. I will, hereafter, do the Indian Flora, as I had intended;4 I understood that you had tabulated it for same end, but I suppose I quite misunderstood you, & was at the time surprised that you thought it worth so much of your valuable time.
I have to thank you & Dr Seeman (& please give him my particular thanks) for the honour of being elected a member of the Soc. Cæs. Leopold &c. &c.:5 I confess that I know nothing of this Socy but no doubt it is an honour.
I have just finished Asa Gray’s Lessons in Botany:6 how wonderfully clear they are: so clear & simple that I infer that he must have passed over all difficulties: at least my very ancient remembrance of similar works tells me that Botany was formerly much more complicated.
I will see how the present Books work out about varieties before I think of De Candolle:7 I am not at all sure that I see my way theoretically when the whole range of a plant is taken in, for then come in geographical representatives, which may perhaps form a somewhat different case from a species in the same country splitting up into varieties.
I enclose questions for Anderson, & if he can help me, it will be valuable assistance.—8
I have just been writing an audacious little discussion, to show that organic beings are not perfect, only perfect enough to struggle with their competitors; & I have been giving the pollen-case of Coniferæ, which we talked over; & Drone Bees give a good parallel in animals—viz 2000 to fertilise 2 or 3 Queens, & the act causing the inevitable death of the Male!9
I am so very sorry that you cannot come soon here.
Farewell | My dear Hooker | C. Darwin
If you can remember, will you ask Henslow to enquire whether Water-Fowl have ever been seen in Ransome’s great tank, when shells reappear.—10
P.S. Speaking of tank & water-fowl reminds me to mention as bearing on water-waders transporting seeds, that in some mud, got on Feb. 10 from 3 or 4 spots under water on edge of small pond (& therefore no one nest of seeds)—that out of this mud, which when stiff filled break-fast cup & when dried at ordinary heat, weighed 6 oz, I have picked out, during last six months 537 plants! many different kinds of plants appeared.—11
Dun or Mouse-coloured Horses are said to be common in Norway.
Have they invariably a dark line along the spine? How generally have they the transverse Stripe on the shoulder like that on ass; & how generally transverse zebra-like stripes on legs?
Is this colour (with or without the stripes) particularly inheritable? Must both parents be dun to produce a foal of this colour? Does this colour ever appear in the offspring, when both parents are of a different colour?
Especially I want to know, whether the stripes, such as those on the legs, are plainer on the foal, before it has shed its first coat of Hair.— If such be the case, do the leg- or shoulder-stripes ever quite disappear when the horse grows old?
Any other information on Horses of this colour would be very valuable to me.—
C. Darwin Down Bromley Kent | Sept. 11th —
Representative species may complicate tabulation of varieties.
Questions for Mr Anderson about horse colouring in Norway.
Has been writing an "audacious little discussion" to show that "organic beings are not perfect, only perfect enough to struggle with their competitors".
Please cite as
Darwin Correspondence Project, “Letter no. 2140,” accessed on 26 July 2016, http://www.darwinproject.ac.uk/DCP-LETT-2140