Photographs of Nebulae and Clusters - LightNovelsOnl.com
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"The Spiral Nebula, H. I., _55 Pegasi_," _Ap. J._, =11=, 1.
"Photographic Observations of Hind's Variable Nebula in _Taurus_, made with the Crossley Reflector of the Lick Observatory," _Mon. Not. R. A.
S._, =60=, 424.
"Use of the Crossley Reflector for Photographic Measurements of Position,"
_Pub. A. S. P._, =12=, 73.
"Discovery and Photographic Observations of a New Asteroid 1899 FD.," _A.
N._, 3635.
"Elements of Asteroid 1899 FD." (by H. K. Palmer), _A. N._ 3635.
[12] Footnote added in 1908: This concluding paragraph, retained in the present publication for completeness, loses point in some particulars, because the photogravure referred to is not reproduced here. The heliogravure reproduction of the Trifid nebula is No. 55.
[13] Since then a photograph by Dr. Roberts has appeared in _Knowledge_, =23=, 35, February, 1900.
