Observatory

v.15 (1892); v.14 (1891); v.19 (1896); v.10 (1887); v.3 (1879-1880); v.7 (1884); v.18 (1895); v.16 (1893); v.20 (1897); v.17 (1894); v.6 (1883); v.9 (1886); v.4 (1881); v.21 (1898); v.11 (1888); v.1 1877-1878; v.2 1878-1879; v.3 1879-1880; v.4 1881; v.5 1882; v.6 1883; v.7 1884; v.8 1885; v.19 1896; v.9 1886; v.10 1887; v.11 1888; v.12 1889; v.13 1890; v.14 1891; v.15 1892; v.16 1893; v.17 1894; v.18 1895; v.20 1897; v.21 1898; v.1 (1877-88); v.2 1879; v.3 1880; v.4 1881; v.5 1882; v.6 1883; v.7 1884; v.17 1894; v.18 1895; v.19 1896; v.8 1885; v.9 1886; v.14 1891; v.12 1889; v.13 1890; v.15 1892; v.16 1893; v.20 1897; v.3 no.31 Nov.1879; v.1 no.12 Apr. 1878; v.1 no.11 Mar. 1878; v.1 no.10 Feb. 1878; v.1 no.6 Sept. 1877; v.1 no.5 Aug. 1877; v.1 no.4 July 1877; v.1 no.3 June 1877; v.1 no.2 May 1877; v.12 no.155 1889; v.12 no.154 1889; v.12 no.153 1889; v.12 no.152 1889; v.12 no.151 1889; v.12 no.150 1889; v.12 no.148 1889; v.12 no.147 1889; v.12 no.146 1889; v.12 no.145 1889; v.13 no.169 1890; v.13 no.168 1890; v.13 no.167 1890; v.13 no.166 1890; v.13 no.165 1890; v.13 no.163 1890; v.13 no.161 1890; v.13 no.160 1890; v.13 no.159 1890; v.13 no.158 1890; v.2 no.23 1879; v.2 no.22 1879; v.2 no.20 1878; v.2 no.18 1878; v.2 no.17 1878; v.2 no.15 1878; v.17 no.216 July 1894; v.17 no.215 June 1894; v.17 no.214 May 1894; v.17 no.213 Apr. 1894; v.17 no.212 Mar. 1894; v.17 no.211 Feb. 1894; v.17 no.210 Jan. 1894; v.11 no.143 Dec. 1888; v.11 no.142 Nov.1888; v.11 no.140 Sept. 1888; v.11 no.139 Aug. 1888; v.11 no.138 July 1888; v.11 no.137 June 1888; v.11 no.136 May 1888; v.11 no.135 Apr. 1888; v.11 no.134 Mar. 1888; v.11 no.133 Feb. 1888; v.11 no.132 Jan. 1888; v.6 no.72 Apr. 1883; v.6 no.70 Feb. 1883; v.17 no.209 1894; v.11 no.131 1888; v.10 no.118-130 1887; v.9 no.105-117 1886; v.8 no.93-104 1885; v.6 no.69 Jan. 1883; v.21 no.261-273 1898; v.20 no.248-260 1897

vol. 8-9 (1885-1886); vol. 14-15 (1891-92); vol. 16-17 (1893-94); vol. 18-19 (1895-96); vol. 20-21 (1897-98); vol. 10-11 (1887); vol. 6-7 (1883)