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First I must apologize to the list and to George Huxtable in particular.
I do not know what was so offensive in his last message that caused my
internet provider's spam filter to insert the SPAM warning into the
subject line. I did not catch that in time when replying. It probably
broke the thread?


Richard B. Langley wrote:

>Quoting Herbert Prinz :
>
>
>
>>It's a classical surveying technique, in German called
>>"rueckwaerts-einschneiden". The English  name is  "recession for two
>>points" (I wish you good luck googling this phrase - particularly in
>>times like our's.)
>>
>>
>
>Perhaps you mean "resection"?
>
>

Thank you, Richard. That's exactly what I mean. I got thrown off by Dirk
J. Struik's article on Snel in the DSB, Vol. 12, p.499. "The Doctrina,
which comprise a plane and spherical trigonometry, includes the
recession [sic] problem for two points [...]".

No wonder I got strange results from Google. When searching for
"recession AND surveying" I hit a page with survival strategies for
surveyors, giving advice how to stay in business during an economic
recession.

Herbert Prinz




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