1. Dragonflies (Odonata) collected by D. A. Alkinson in Newfoundland, with notes on some species of Somatochlora;Williamson;Ent. News,1906
2. Dragonflies (Odonata) from the Magdalen Islands;Williamson;Ent. News,1902
3. British Columbia Dragonflies (Odonata) with notes on distribution and habits;Walker;Amer. Midland Nat.,1941
4. THE FEMALE OF LEUCORRHINIA PATRICIA WALKER, WITH FURTHER NOTES ON THE MALE
5. List of the Odonata of Ontario with distributional and seasonal data;Walker;Trans. R. Can. Inst.,1941