[Syrphidae] Re: Walker measure in lines?

[P. Hondelmann]

Hi,

could be this one: https://en.wikipedia.org/wiki/Line_(unit)

Regards

Peter

Am 18.02.23 um 12:45 schrieb Bastiaan Wakkie:
> Hi all,
>
>
> I noticed Walker in his publication of 1849 is talking about 'lines' 
> for measurements.
>
>
> Example:
>
> " Length of the body 2 lines of the wings 4 lines. "
>
>
> Does anyone have any idea how to translate this into mm?
>
>
> Cheers,
>
> Bastiaan
>
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