— 20 — 
Schweizerische geodaiische Commission : Procès-verbaux 
séances. Neuchâtel 1867-1882. 8°. 
Schweizerische geodaiische Commission : Astronomisch-o 
dâtische Beobachtungen. 1862-1882. 4°. 
Schweizerische geodaiische Commission : Nivellement de } 
cision de la Suisse par A. Hirsch et E. Plantaim 
7 livraisons. 
Smithsonian Institution, annual report. 13 vol. 1866-1880. 
Toulouse, Annales de T Observatoire. Vol. I. Paris 1880. 4 
Trewandrum magnetical observations. Yol. 1. London 1874. 
Upsala, Refractionsbeobachlungen der Universitâtssternwa 
Upsala 1864. 8°. 
United States coast Survey, report of the superintendent. 15 
1866-1880. Washington. 4°. 
Washington, annual report of the chief signal officer to 
secretary of war. 1872, 77, 79. 8°. 
Washington, Report of the commissioner of agriculti 
1868-1870. 8°. 
Washington, Daily bulletin of weather reports. 43 vol. i 
à 1877. 4°. 
Washington, U. S. Naval observatory, astron. and meteoroloc 
observations. 10 vol. 1865-1876. 4°. 
Washington, Astronomical papers, prepared for the use of 
american ephemeris and nautical almanac, by SiNewco 
1882. 4°. 
Wien, Sternwarte, Annalen. 29 vol. 1861-1879. 8°. 
Winchester Observatory of Yale college, first annual rep 
New Haven 1881. 8°. 
Wolf, Rud., Mittheilungen iiber die Sonnenflecken und as 
nomische Mittheilungen. Zurich 1857-1882. 8°. 
Württembergische meteorologische Beobachtungen. 187 
1879. Herausgegeben von H. Schoder. 4°. 
