Aperture evoked the comment in his journal for that year, There is not now a single person employed or instrument used in the observatory which was there in Mr Pond's time; and the transformation was completed by the inauguration of spectroscopic work in 1868 and of the photographic registration o
spectroscopic הגייה עם משמעויות, מילים נרדפות, הפכים, תרגומים, משפטים ועוד