ASTRONOMY. 209 



Photography (Stellar)— Continuod. 



[liKPouTof photograpliic cuiiimittoo Royal AHtronoiiiical Society.] Month. Not., 



■Id : 351. 

 ROBEKTS (I.) An in.strument for measuring the positions and magnitudes of stare 



on photographs and for engraving them upon metal phites ... il. Month. 



Not., 49: u-i:5. 

 Tknnant (J. F. ) Note on the definition of retlecting telescopes ami on the 



images of bright stars on photographic plates. Mcmtli. Not., 4^: 104. 

 VoGKL (H. C.) Mittheilungen ilber die von dem astrophy.sikalischen Ohsorva- 



toriiim zn Potsdam iibernommenen Voruntersncliungen zur Herstcllnng der 



photographis(!hen Ilimnielskarte. Astron. Nachr., 119: l-(5 



Photometer. 



Cekaski(\V.) Photomfetre de Zollner h deux ocnlaircs. Astron. Nachr., 120: 



2I». 

 ParKHU1!ST (II. M.) Obliteration from illumination. Sid. Mess., 7: .'{37-ii4;5. 

 Photometry. .Sec, aJ-so, Astrroids. 



DoKsr (— .) Reduction der von Zollner pliotometrisch bestimmten Sterne. 



Astron. Nachr., 118: -iCKj-'J^O. 

 MoNCK (W. 11. S.) [Comparison of the] Harvard and Oxford photometry. Sid. 



Mess., 7: \)2. 

 PlCKEiUN'G (E. C.) Zone observations made with the transit wedge photometer 



attached to the equatorial of 15 inches aperture . . . 18.S2-'86. Ann. Harv. 



Coll. Obsry. 13: 211-359 (v. 13, pt. 2). 

 Planets. Sec, also, Solau Syste^ai. 



[Nkwcomb (S.)]. New tables of the i)IanotH. Rept. Snpt. Am. Nant. Almanac, 



1887 : 4. 

 RoGEii ( — .) Distances moyennes des pl.anfetes au soloil. Compt. Rend., lOti: 



249. 

 ZiCNGKli (C. V.) Periods of the; planets. Obsry., 11: 87. 



Planets (Orbits of). 



LoilNSTEiN (T.) IJeber die Gloichungen v. Oppolzer's zur Px'stimmung der helio- 

 centrischen Distanzen einos Planeten. Astron. Nachr., 119: 243. 

 Pleiades. 



MouCHEZ (E.) Nouvellcs n(^buleuses ddcouvcrtcs h I'aide de la photographie 

 dans les Pl<<iades. Compt. Rend., lOG: 912. 

 Prague Observatory. 



Wkixkk (L.) Neuer Zeitbestiuunuugsraum dir Sternwarte in Prag. Sirius, 21: 

 174, 2(i5. 



Precession. 



Sec STAU-PLACE.S'(Reduction of). 



Proctor (Richard Anthony). [lrt:',7-'88. ] 



Noble (W.) [Obituary notice.] Obsry., 11: 3(j(;-3(>8. Knowledge, 11 : 265. 

 [Portrait.] 

 Prominences (Solar). See, also, Sux; Sux (Statistics, etc.). 



Ricco (A.) Grandes protub6rances solaires observ^es il Palernu) do 1881 ;\ 1887. 

 ... il. L'Astron., 7: 215, 254. 

 Pulkowa Observatory. 



Ohskuvatiox.s de Poulkova ... v. 14. Deduction des d^cliuaisons moyennes 

 du catalogue des <?toiles ])rincipales pour 181)5.0. MdmoinMl'i M. NyriSn. Ob- 

 servations faites au cerclo vertical 1871-1875. 228 ]). 4to. St. Pdtersbourg, 



1888 (M. 26.40) 



Supplement I jiux observations do Poulkova. Meobachtungeu der Saturns- 



trabanten. 1 Abtheilung. 132*p. 4lo. St. lY-tersbourg, 1888 (M. 10.60) 



H. Mis. 142 14 



