IOWA ACADEMY OF SCIENCE 
63 
IOWA FOR THE PERIOD 1870 TO 1908 INCLUSIVE-Continued, 
1886 
1887 
1888 
1839 
1890 
1891 
1892 
1893 
1894 
1895 
1896 
1897 
1898 
1899 
1900 
1901 
1902 
1903 
1904 
1906 
1906 
1907 
1903 
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