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Summary of a Lecture delivered, before the Ottawa Field-Naturalists' Club, on Jan. 28th, 1911
Vol 25, Iss 1, Page 15, Date 1911-04
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Meeting of Botanical Branch
Vol 25, Iss 1, Page 16, Date 1911-04
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Conchological Notes
Vol 25, Iss 1, Page 19, Date 1911-04
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Blue Jay imitating Red-shouldered Hawk: Absence of cones on Evergreen trees
Vol 25, Iss 1, Page 20, Date 1911-04
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Oh Arctotherium from the Pleistocene of Yukon
Vol 25, Iss 2, Page 21, Date 1911-05
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The Spring Migration of Birds at Fishermans Island, Toronto
Vol 25, Iss 2, Page 27, Date 1911-05
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Meeting of Botanical Branch
Vol 25, Iss 2, Page 32, Date 1911-05
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Phytopathology, by American Phytopathological Society [Review]
Vol 25, Iss 2, Page 37, Date 1911-05
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Nesting of the Mourning Warbler, Laval County, Quebec
Vol 25, Iss 2, Page 39, Date 1911-05
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Ruby B. McQuesten [Obituary]
Vol 25, Iss 2, Page 40, Date 1911-05
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Some Canadian Antennarias. IV
Vol 25, Iss 3, Page 41, Date 1911-06
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The Spring Migration of Birds at Fishermans Island, Toronto, continued
Vol 25, Iss 3, Page 43, Date 1911-06
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Coleoptera Collected in Northern Ontario
Vol 25, Iss 3, Page 48, Date 1911-06
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Changes in the Status of certain birds in the vicinity of Montreal, P.Q.
Vol 25, Iss 4, Page 57, Date 1911-07
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The teaching of Insect Life and its practical importance
Vol 25, Iss 4, Page 63, Date 1911-07
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Conchological Notes
Vol 25, Iss 4, Page 67, Date 1911-07
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The Home-Life of a GOlden Eagle, by H. B. MacPherson [Revew]
Vol 25, Iss 4, Page 71, Date 1911-07
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Dr. R. Wheelock Ells [Obituary]
Vol 25, Iss 4, Page 72, Date 1911-07
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Natural History Notes from Calgary, Alberta
Vol 25, Iss 5, Page 73, Date 1911-08
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Some Raptorial Migrations in Southern Ontario
Vol 25, Iss 5, Page 77, Date 1911-08
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Popular Entomology, The Luna Moth
Vol 25, Iss 5, Page 81, Date 1911-08
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The Preparation of a Catalogue of the Insects of Canada
Vol 25, Iss 5, Page 83, Date 1911-08
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Some Newfoundland Bird Notes.
Vol 25, Iss 6, Page 89, Date 1911-09
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The Algae of the Bruce Peninsula
Vol 25, Iss 6, Page 94, Date 1911-09
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The Fertilizing Value of Rain and Snow
Vol 25, Iss 6, Page 99, Date 1911-09
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The Occurrence of the Larva of the Wanderer, Feniseca tarquinius, in November
Vol 25, Iss 6, Page 100, Date 1911-09
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Lands, Fisheries, Game and Minerals, by Commission of Conservation, Canada [Review]
Vol 25, Iss 6, Page 102, Date 1911-09
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Fauna Ottawaenis. Order Lepidoptera : Superfamily Geometroidea
Vol 25, Iss 7-8, Page 105, Date 1911-10
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Plants Causing Skin Irritations
Vol 25, Iss 7-8, Page 112, Date 1911-10
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Some Canadian Senecios
Vol 25, Iss 7-8, Page 114, Date 1911-10
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Notes on Native Orchids
Vol 25, Iss 7-8, Page 118, Date 1911-10
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The Cardinal at Ottawa
Vol 25, Iss 7-8, Page 121, Date 1911-10
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A Family of Sharp-shinned Hawks
Vol 25, Iss 7-8, Page 121, Date 1911-10
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The White- winged Junco in Manitoba
Vol 25, Iss 7-8, Page 122, Date 1911-10
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Hoyt's Horned Lark in Manitoba
Vol 25, Iss 7-8, Page 122, Date 1911-10
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Festuca occidentalis in Ontario
Vol 25, Iss 7-8, Page 123, Date 1911-10
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Popular and Practical Ornithology - The Snowflake
Vol 25, Iss 9, Page 125, Date 1911-12
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Abundance of the Cotton Moth in Ontario
Vol 25, Iss 9, Page 129, Date 1911-12
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The Nature of Parasitic Fungi and their Influence upon the Host Plant
Vol 25, Iss 9, Page 130, Date 1911-12
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Popular Entomology. The Engraver Beetles, (Family Ipidae)
Vol 25, Iss 10, Page 141, Date 1912-01
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Accessions to Canadian Botany
Vol 25, Iss 10, Page 145, Date 1912-01
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Popular and Practical Ornithology, II. The Marsh Hawk
Vol 25, Iss 10, Page 147, Date 1912-01
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The Status and Development of Canadian Archaeology
Vol 25, Iss 10, Page 151, Date 1912-01
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The Yellow Breasted Chat and the Carolina Wren in Ontario
Vol 25, Iss 10, Page 152, Date 1912-01
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Gossamer Spiders
Vol 25, Iss 10, Page 153, Date 1912-01
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New England Trees in Winter, by A. F. Blakeslee and C. D. Jarvis [Review]
Vol 25, Iss 10, Page 155, Date 1912-01
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The Myxomycetes or Slime-moulds of the Ottawa District ; a preliminary list
Vol 25, Iss 11, Page 157, Date 1912-02
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The Identity of the better known Midge Galls
Vol 25, Iss 11, Page 164, Date 1912-02
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Drinking Water and Health
Vol 25, Iss 11, Page 168, Date 1912-02
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Passenger Pigeon Investigation
Vol 25, Iss 12, Page 174, Date 1912-03
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Drinking Water and Health, continued
Vol 25, Iss 12, Page 175, Date 1912-03
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The Identity of the better known Midge Galls, continued
Vol 25, Iss 12, Page 181, Date 1912-03
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The Gray or Arkansas King Bird
Vol 25, Iss 12, Page 188, Date 1912-03
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Notes Conchological and otherwise
Vol 25, Iss 12, Page 189, Date 1912-03