ASTRONOMY. 209 



Photography (Stellar)— Continued. 



[Kkport of photographic coniniittoo Royal AHtrononiical Society.] Month. Not., 



48 : 351. 

 RoBEUTS (I.) Ati instrument for measuring the positions and magnitudes of stars 



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



Not., 49: 5-1:5. 

 Tennant (J. F.) Note on the definition of reflecting telescopes and on the 



ima'T-es of bright stars on photographic plates. Month. Not., 4"^: 104. 

 VOGEL (H. C.) MittheilungeJi iiber die von dem astrophysikalischen Ohserva- 



torium zu Potsdam iibernommeneu Voruntersuchungen zur Herstellung der 



photographischen Himmelskarte. Astron. Nachr., lit) : 1-6 



Photometer. 



Ckuaski(W.) Photoni^tre do Zollner h deux oculaires. Astron. Nachr., I'^O; 



2 lb. 

 Parkiiukst (IT. M.) Obliteration from illumination. Sid. Mess., 7: ;{37-:{43. 



Photometry. See, also, Asteroids. 



DOKST (— .) Reduction der von Zollner photometrisch beetimmten Sterne. 



Astrou. Nachr., 118: 209-226. 

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



Mess., 7: 92. 

 PicKEiaxG (E. C.) Zone observations made with the transit wedge photometer 



attached to the equatorial of 15 inches aperture . . . 1882-'8G. Ann. Harv. 



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

 Planets. See, aJso, Solar System. 



[Newcomb (S.)]. New tables of the planets. Rept. Supt. Am. Naut. Aluiauac, 



1887 : 4. 

 lloGER ( — .) Distances moyennes des planfetos au soloil. Compt. Rend., 106: 



249. 

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



Planets (Orbits of). 



LOHNSTEIN (T.) Ueberdie Gleichnngen v. Oppolzer's zur Bestimmung der helio- 

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



Pleiades. 



Moi'CHEZ (E.) Nouvelles ndbnleuses ddcouvortes h I'aid*! de la jihotograjjhie 

 dans les Plt^iades. Compt. Rend., 106: 912. 



Prague Observatory. 



Weinek (L.) Neuer Zeitbestimmungsraum der Stern warte in Prag. Sirius, 21 : 



174, 205. 



Precession. 



See. Star-places (Reduction of). 



Proctor (Richard Anthony). [l837-'88. ] 



Noble (W.) [Obituary notice.] Obsry., 11: 36r)-3tiH. Knowb-dge, 11 : 265. 

 [Portrait.] 

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



Ricc5 (A.) Grandes protub6rauces solaires observ^es j\ Palermo de 1881 h 1887. 

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



Pulkowa Observatory. 



Ousiujvations do Ponlkova ... v. 14. Deduction des d^clinaiHOUs nioyeunea 

 du catalogue des dtoiles principales pour 1865.0. Mdmoire ds M. Nyr(«n. Ob- 

 eervations faites au cercle vertical 1871-1875. 228 p. 4to. St. PtHersbourg, 

 1888 (M. 26.40) 



Supplement I aux observations de Poulkova. Heobachtungen der Saturns- 

 trabanten. 1 Abthciluug. 132 p. 4to. St. l*6t.Tsbourg, 1888 (M. 10.60) 



H, Mis. 142 14 



