1919Protozoology 1919No. of attendees: 681920Protozoology 1920No. of attendees: 681921Protozoology 1921No. of attendees: 521922Protozoology 1922No. of attendees: 601923Protozoology 1923No. of attendees: 761924Protozoology 1924No. of attendees: 841925Protozoology 1925No. of attendees: 881926Protozoology 1926No. of attendees: 881927Protozoology 1927No. of attendees: 841928Protozoology 1928No. of attendees: 761929Protozoology 1929No. of attendees: 721930Protozoology 1930No. of attendees: 681931Protozoology 1931No. of attendees: 801932Protozoology 1932No. of attendees: 761933Protozoology 1933No. of attendees: 561934Protozoology 1934No. of attendees: 561935Protozoology 1935No. of attendees: 761936Protozoology 1936No. of attendees: 801937Protozoology 1937No. of attendees: 761938Protozoology 1938No. of attendees: 521939Protozoology 1939No. of attendees: 601940Protozoology 1940No. of attendees: 40
