stellar Spectroscopy. 



213 



8620 



Wliitmell. H0:.'l3. 

 liglit ill space. 



Dispersion of 



8400 



im:culiar spectra. 



Pickering. Stars Laviug peculiar 

 spectra. llarv.C, No. 98, Hj. 



Slipher. Tlie spei-truin of « C'apri- 

 conii. A]).J., 25, \2i^^>). 



8500 MOTIOX IX Till': IJXK 

 Oi' SIGHT. 



Campbell. The radial motions oi' 

 Polaris. A.S.P., 18, (307). 



& Moore. 



Seven new 



spectroscopic binaires. A.S.P., 18,(308). 



CurtisS. 127(53. IJecent progress iu 

 the nieasiireiueiit antl reduction of 

 radial velocity spectrograms. 



Palmer. A short method of computing 

 an ap2jroxiniate value of the reduction 

 to sun in radial velocity determinations. 

 Ap.J., 24, .31). 



Schlesinger. 13821. A simple metiiod 

 for leducing spectrograms. 



8550 VARIABLE MOTIUN IN 

 THE LINE OF SIGHT. 



Albrecht. A spectrographic study of 

 the fourth-class variable stars Y Uphi- 

 uchi and T Vulpeculae. Aji.J., 25, (330,). 

 Thesis. California. 



Belopoliskij. 125t)2. Recherches sur 

 les vitt'sses radiales de I'etoile )3 Persei 

 (^Ugolj. D'apres les observations faites 

 a Poulkovo en 1905-1907. II. (Rnss.j 



Campbell & Moore. Two stars whose 

 velo(.'ities are variable. A.S.P.,18, (137). 



Eight stars wiiose radial 



velocities vary. Ap.J., 26, [292). 



Loud. A suggestion toward the 

 explanation of short-period variabilitv. 

 Ap.J., 26, (369). 



LudendorfT. Orbit of the spectro- 

 scopic Ijinary- Arietis. [Translation.] 

 Ap.J., 25, (320). 



Die Verandcilichkeit dei' 



Radialbewegung von /3 I'rsae niajoris. 

 A.N., 177, (235). 



Maddrill. The variable radial velocity 

 and the period of SU Cygni. A.S.P., 

 18, (252j. 



Slipher. Variable radial velocity of 5 

 Capricorni. A]). J., 24, (361). 



\'arial)le radial velocitv of 



rCephei. Ap.J., 25, (284). 



Wright. Two stars whose radial velo- 

 cities are variable. Ap.J., 26, (296). 



8560 spectroscopic; obser- 

 vations OF VISUAL DOUBLE 

 stars. 



Goos. Der spektroskopische Doppel- 

 stern Capella. Diss. Bonn, 1908. 



Lau. Le spectre des etoiles uouvelles. 

 B.A., 23, (297). 



LudendorfT. Radialgeschwindigkeit 

 der schwjicheren Komponente vou i" 

 Ursae majoris. A.N., 177, (7). 



Die Bahn des spektrosko- 



pisehen Doppelsterus a Andromedae. 

 A.N., 178, (23). 



Beobachtuugen einiger 



sijektroskopischer Doppelsterne. A.N., 

 178, (53). 



8600- SPECTROSCOPIC BINARY 

 AND .MULTIPLE SYSTEMS. 



Campbell. Nine spectroscopic binary 

 stars. A.S.P., 17, (24). 



& Moore. Seven new 



spectroscopic binaries. A.S.P. , 18, ('308). 



Frost. The period of Cephei. Ap.J., 

 24, (2591. 



On certain spectroscopic 



binaries. A.N., 177, (171j. 



Ichinohe. Orbit of the spectroscopic 

 binary k Cancri. Ap.J., 25, (315). 



Orbit of the spectroscopic 



binary ,u Sagittarii. Ap.J., 26, (157). 



Ludendorff. Orbit of the spectro- 

 sco])ic binary Arietis. [Translation.] 

 Ap.J., 25, (320). 



8620 ORBITS FROM SPECTRO- 

 SCOPIC OBSERVATIONS. 



Belopoliskij. 12502. Recherches sur 

 les vitesses radiales de I'etoile j3 Pei-sei 

 (Algol). D'apres les obsei-vations faites 

 i Ponlkovo en 1905-1907. II. il'aiss.) 



Bums. Orbit of the spectroscopic 

 binary X Andromedae. Ap.J., 24, (345) ; 

 A.S.P., 18, (306). 



Campbell. The vaijable radial velo- 

 citv of Siiiiis and the inclination of its 

 orbit-phuie. A.S.P., 17, (66). 



