RECORD: Darwin, C. R. n.d. Abstract of Abstract. CUL-DAR53.2.161. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 1.2022. RN1

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.

[161]

Abstract of Abstract

p. 1.

2 vertical especially when opening pointed at great angle from light

3 vertical angle 62º & 56º 50º

5 vertical angle not specified

4 vertical circles

4

[total] 14 vertical.

3 deflected in line of stripe. 52º 52º, 18º.

4 deflected - in line of stripe. 50º - 60º

6 deflected not quite in line of stripe, yet 45º frm inside

[total] 13 [+] 14 [=] 27.

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

File last updated 25 September, 2022