1![by mechanical flexure of the telescope and mounting, as well as those caused by changes in temperature. The third director, Romney Robinson later said that useful measurements could nevertheless be obtained by by mechanical flexure of the telescope and mounting, as well as those caused by changes in temperature. The third director, Romney Robinson later said that useful measurements could nevertheless be obtained by](https://www.pdfsearch.io/img/7d581364fd4b21d590da036eadf2c091.jpg) | Add to Reading ListSource URL: star.arm.ac.ukLanguage: English - Date: 2014-12-09 04:49:20
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2![adjust the instrument for proper use. By 1797, Dr Hamilton was worried about the instrument’s accuracy because of the errors introduced by mechanical flexure of the telescope and mounting, as well as those caused by adjust the instrument for proper use. By 1797, Dr Hamilton was worried about the instrument’s accuracy because of the errors introduced by mechanical flexure of the telescope and mounting, as well as those caused by](https://www.pdfsearch.io/img/c901b99f72470299eef01add03db8a91.jpg) | Add to Reading ListSource URL: star.arm.ac.ukLanguage: English - Date: 2012-04-16 04:57:00
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3![Foreword When John Louis Emil Dreyer published the New General Catalogue of Nebulae and Clusters of Stars in 1888, he tried to bring some sense and order to the lists of William and John Herschel. Dreyer’s seminal wor Foreword When John Louis Emil Dreyer published the New General Catalogue of Nebulae and Clusters of Stars in 1888, he tried to bring some sense and order to the lists of William and John Herschel. Dreyer’s seminal wor](https://www.pdfsearch.io/img/8d2eac984a435bfaddea3eaea0fef496.jpg) | Add to Reading ListSource URL: www.willbell.comLanguage: English - Date: 2003-05-07 08:53:51
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4![](https://www.pdfsearch.io/img/f4bfea6c4bce80758f6e37454ab8d956.jpg) | Add to Reading ListSource URL: ia600504.us.archive.orgLanguage: English - Date: 2007-03-15 15:44:59
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