[Taxacom] Units of length in Francis Walker's descriptions of insects

Mary Barkworth Mary.Barkworth at usu.edu
Sun Nov 4 08:04:51 CST 2018


From wikipedia:
"The line (abbreviated L or l or ‴ or lin.) was a small English unit of length, variously reckoned as ​1⁄10, ​1⁄12, ​1⁄16, or ​1⁄40 of an inch. It was not included among the units authorized as the British Imperial system in 1824".  
I had thought it was 1/12 of an inch. Wrong, again. Does anyone know whether one usage prevailed in a particular discipline? Using 1/12 gave me numbers that seemed reasonable when looking at grass descriptions.


-----Original Message-----
From: Taxacom <taxacom-bounces at mailman.nhm.ku.edu> On Behalf Of Dilrukshan Wijesinghe
Sent: Sunday, November 4, 2018 6:58 AM
To: Taxacom List <taxacom at mailman.nhm.ku.edu>
Subject: [Taxacom] Units of length in Francis Walker's descriptions of insects

This must be common knowledge to entomologists better informed than I am: Can someone tell me if the units in Francis Walker's descriptions of insects are tenths of an inch? E.g. does "5 1/2 lin." = 0.55 inch?
 Thanks.

Priyantha
D. P. Wijesinghe
dpwijesinghe at yahoo.com

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