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Darwin Correspondence Project

From E. A. Darwin [17 January 1825]



My dear Bobby.

I have been indulging myself in the pleasure of scheming, & I here send you the fruits of it. The Lab:, as we know to our cost, wants a dry place to keep our apparatus in, and the above drawing is a plan for that purpose, but from not remembering the dimensions I have been obliged to draw it by my eye, & not by any scale. A.A you must understand are the chimneys as they now stand, & I propose under the arch to open a window looking into the drying yard, this is represented at C. Next, to inclose a small space sufficient to sit or turn round it with lath & plaster. I should put the laths double with a space between of one or two inches as figured at B,B. I have drawn the door at D, which I make as narrow as possible, & perhaps double like a Rumford ash-door (wh. you may see in ye scullery). I should floor it with wood raised up an inch from the bricks, & having a chimney on both sides, if any out-of-doors place can be dry I should think this would. There might be a shelf before the window, which would be an excellent place for weighing &c. and being South would do very well for any experiments with the Sun’s rays, which is also a desideratum in our Lab.

I have drawn this with dotted lines, those on each side may be either shelves or drawers.

Go to the Lab. with a rule in your hand & consider about it, & let me know what you think.

Price in drinking tea observed a black heavy sediment constantly form, & by degrees he collected a small pill box full. He gave me a few grains to examine, & I found it be entirely attracted by the magnet. Is not this curious? We are going to try how much per cent is in the tea, & then send it to Children1 (Editor of An. of Phil.) to examine it & what else he may please to do.

I wish when you write you would send me a piece of Plat. Wire. Put it in the fold of the first page & gum it fast & I dare say it will pass muster with the post office—

Good Bye. Let me hear soon | yours, E. D.

N.B. Keep the plan at all events.


John George Children.


Proposes a dry place for the apparatus for their laboratory and draws a plan for CD’s criticism.

Price has found black sediment in his tea, which was attracted to a magnet.

Letter details

Letter no.
Erasmus Alvey Darwin
Charles Robert Darwin
Sent from
Source of text
DAR 204.1
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 10,” accessed on 25 May 2018,

Also published in The Correspondence of Charles Darwin, vol. 1