The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. Worm castings [weight calculations] / Draft of Expression, Chapter 4. CUL-DAR63.25-27. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volumes CUL-DAR63, CUL-DAR64 and CUL-DAR65 contain a diverse array of materials for Darwin's research on earthworms. All of the textual items in these folders, including this one, have been transcribed in a single file: CUL-DAR63-65.

Worm castings

Weight of Earth below the hole 185

Weight of Earth above the hole 102

∴ Weight below [÷] weight above = 9/5 nearly

This was not an old one

Dec 26/71 Lawn on mound

Casting above 1. 7/8 long

Turf thrown away

∠ of slope 5 1/2º

December 26th

Dec 26 & 27.

Measured on Lawn

Beneath hole grams

Lower 129

Upper 054

Slope 10 1/2º

26v

Bartlett (Ch. IV)

It is odd how many animals hiss when angry —

Geese — owls — snakes — Horned toads — Otters? Lizards? Any mammal?

Does Puff adder inhale & sell solely for hissing ie does its body collapse after a hiss & then swell again — Can the swelling seem from remembrance.— Do many other snakes swell?

[Draft of Expression, Chapter 4.]

Length inch 2 1/2 (of casting)

Slope 4 1/2º

below hole 182 [gr]

Above hole 088 [gr]

hole pointing up the hill

Part was almost new & part rather old

On mound on Lawn

Dec. 27th-

Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)