- 2,706 specimens collected from at least 3 countries
- 422 specimens identified from at least 2 countries
- 993 specimens used in 39 works
Progress
Collected From
- Canada 1,894
- United States 658
- Greenland 76
Identified From
- Canada 414
- United States 6
Dates Collected
- 1890 – 1895 42
- 1895 – 1900 65
- 1900 – 1905 79
- 1905 – 1910 256
- 1910 – 1915 668
- 1915 – 1920 517
- 1920 – 1925 422
- 1925 – 1930 376
- 1930 – 1935 44
- 1935 – 1940 106
- 1940 – 1945 8
- 1945 – 1950 9
- 1950 – 1955 1
Dates Identified
- 1925 – 1930 75
- 1930 – 1935 136
- 1935 – 1940 33
- 1940 – 1945 25
- 1945 – 1950 4