Investigations representing the departments. Astronomy and astrophysics .. (1903)
University of Chicago · Chicago : The University of Chicago Press · leaf 414
4.>;iO :i0 40 4.ir)0 M Gciitilionnti(III) 19 Pise.lIVl (II) Fig. 2. Spectra of Second, Third, and Focrth Types(Violet Region) … Vrs. Mitj. ,r,i„.M„J. a (lj()ni a Persei i:i2 .sc/i,/. Fig. 3. Titanium Lines inStellar Spectra JO Alls-Nn <<* r i- fl \ PHOTOGRAPHY WITH FORTY-INCH REFRACTOR AND TWO-FOOT REFLECTOR ASTRONOMICAL PHOTOGKArHY WITH THE FORTY-INCH REFRAC-TOR AND THE TAVO-FOOT REFLECTOR OF THE YERKESOBSERVATORY G.…
Astronomy
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
