Special bulletin /

no.75-79 (1916); no.80-86 (1917); no.87-90 (1918); no.87-96 1918-19; no.91-96 (1919); no.97-101 1920; no.97-100 (1920); no.102-109 1921; no.102-106 (1921); no.104 (1921:April); no.107-113 (1921-22); no.110-122 1922-23; no.114-121 (1922-23); no.122-127 (1923-24); no.123-134 1924; no.135-140 1925; no.141-147 1926; no.148-153 1927; no.154-161 1928-29; no.162-170 (1930-31); no.171-180 (1931-33); no.181-187 1933-36; no.188-196 1936-38; no.197-205 1938-40; no.206-215 1940-43; no.216-224 1944-49; v.234-237(1960-1961); no.75-79; no.80-86