Word: lensed
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The lens used is a Voigtlander rectilinear lens, corrected and adapted to the purpose in view. The aperture of the instrument is eight inches and a field of ten degrees square in the heavens can be photographed at one exposure.
The lens which was formerly in use, has been reground so that the color connection and spherical aberration have been changed.
...consequently it will include a large area of the sky at once, and will also obtain images of very faint stars and nebulae. With this telescope, Professor Pickering expects to accomplish as much as seventeen other observatories working together according to a plan recently matured at Paris. The lenses will require almost as much metal and as much time and care in construction as the great Lick lens. The contracts have been awarded to the manufacturers of the Lick lens, and it is expected to be finished in about two years. A similar telescope with a diameter of eight inches...
During the eclipse, especial observation was given to the corona and to the analysis of the spectrum, and the result has been that more striking and valuable photographs of those parts of the sun have been obtained than ever before. It seems almost probable that because of the important knowledge...
The last bulletin of the Royal Astronomical Society contains the first of a promised series of letters by Professor Holden, formerly of Harvard University, but now director of the observatory of the University of California. These Jetters will set forth at length the observations which have been made by means...