Tuesday, 28 April 2009

Saturday April 28, 1894

Found that crown lens in visual posn was not quite down to the bearing at upper part of O.G. It was brought down to this (the centreing [sic] screws being released to a sufficient extent) & the dotted[?] bearing pieces brought into contact & screwed down. Washers were afterwards put to the screws to clamp them more firmly.

William Christie, Astronomer Royal

No comments:

Post a Comment