24 



office operations. — 3. Results of magnetic observations made by tie Coast, 

 and geodetic survey between July 1, 1903, and June 30, 1904. By L. A. 

 Bauer.— 4. Telegraphic longitudes. The Pacific arcs from San Francisco 

 to Manila, 1903-4. By Edwin Smith.— 5. Manual of tides, part IV B. By 

 Rollin A. Harris.— 6. Precise leveling from Bed Desert, Wyoming, to 

 Owyhee, Idaho, 1903. By John P. Hayford.— 7. Precise leveling from 

 Holland to New Braunfels, Texas, 1903. By John F. Hayford.— 8. A test 

 of a transit micrometer. By John F. Hayford.— 9. Triangulation in Call 

 fornia, part I. By A. L. Baldwin. 



Lowell Observatory. Flagstaff, Arizona. Bulletin. 4" 



N? 12. — The Cartouches of the Canals, of Mars, by Percival Lowell. 17 pi. 

 „ 13.— On the Spectra of Neptune and Uranus, by V. M. Slipher. June, 



1904. 1 pi. 

 ,, 14.— Mars. Longitude determinations, 1903. Jan. 4, 1905. Percival 



Lowell. 

 ,, 15.— Double Canals of Mars in 1903, by Percival Lowell. March, 1905. 

 ,. 16. — A Photographic Study of the Spectrum of Jupiter, by V. M. 



Slipher. April, 1905. 1 pi. 



Mitteilungen der Nikolai -Hauptsternwarte zu Pulkowo. 

 Band I, 1905. 4° 



Nos. 1-4. — Beschreibung der Umkehrung der Spectrallinien Ca und 

 H im violetten Tei 1 des Spectrums des Sonnenrandes nach im Jahre 1904 

 in Pulkowo erhalten Spectrogramnien. Von A. Belopolsky. — Observations 

 de petites planetes et de la comete d' Encke, faites au refracteur de 15 

 pouces, par A. Sokolov, — Observations photograph.iqu.es de petites pla- 

 netes en 1904, par 8. Kostinsky. — Ephemeride de la comete d' Encke par 

 MM. Kamensky et Oeoulitsch. — Bestimmung der radialen Geschwindig- 

 keiten der "Standard velocity stars," von. A. Belopolsky. — Das Beobach- 

 tungsprogramm fur das neue Zenitteleskop der Nikolai- Hauptsternwarte. 

 Von Til. Wittram. 1 Taf. — Das grosse Zenitteleskop. Von A. Ausan. 

 Taf. I-V. 



