[Syrphidae] Re: Walker measure in lines?

Bastiaan Wakkie bwakkie at syrphidae.com
Sat Feb 18 15:42:17 GMT 2023


Super thanks Peter,

That seams to be the it. So in Walker's case one line would be 2.1 mm . 
For Frensh papers it would be 2.3 mm to make it easier.

Bastiaan

On 18/02/2023 12:58, P. Hondelmann wrote:
> 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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