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Notes on an Interesting Collection of Fossil Fruits from Vermont, in the Museum of the Geological Survey of Canada
Vol 20, Iss 1, Page 15, Date 1906-04
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On the Structure of Roots
Vol 20, Iss 1, Page 18, Date 1906-04
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A May Morning with the Birds in New Brunswick
Vol 20, Iss 1, Page 22, Date 1906-04
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Spergula arvensis L.
Vol 20, Iss 1, Page 24, Date 1906-04
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Nature Study No. 33 - Definite Problems in Nature Study
Vol 20, Iss 1, Page 25, Date 1906-04
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Bird Notes
Vol 20, Iss 2, Page 40, Date 1906-05
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The Ottawa Species of Eriophorum
Vol 20, Iss 2, Page 41, Date 1906-05
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Mosses with a Hand-Lens: A New Nature Study Book, by A. J. Grout [Review]
Vol 20, Iss 2, Page 44, Date 1906-05
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Nature Study No. 34 - A Cement Sidewalk
Vol 20, Iss 2, Page 45, Date 1906-05
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A Sagatious Crow
Vol 20, Iss 3, Page 49, Date 1906-06
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The Chambord Meteroite
Vol 20, Iss 3, Page 51, Date 1906-06
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Notes on the Eggs of the Solitary Sandpiper
Vol 20, Iss 3, Page 52, Date 1906-06
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Nesting of Wilson's Snipe
Vol 20, Iss 3, Page 53, Date 1906-06
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Chrysanthemum leucanthremium L.
Vol 20, Iss 3, Page 55, Date 1906-06
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Zoological Report 1906
Vol 20, Iss 3, Page 56, Date 1906-06
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Eriophorum russeolum, Fr. vs. E. chamissonis, C. A. Mey
Vol 20, Iss 3, Page 62, Date 1906-06
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The Identity of Eriophorum chamissonis and E. Russeolum
Vol 20, Iss 3, Page 62, Date 1906-06
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Nature Study No. 35 - The Galt Park Wild-Flower Garden
Vol 20, Iss 3, Page 67, Date 1906-06
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Some Canadian Antennarias III
Vol 20, Iss 4, Page 71, Date 1906-07
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The Caribou of Queen Charlotte Islands
Vol 20, Iss 4, Page 73, Date 1906-07
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Ivy Poisoning and its Treatment
Vol 20, Iss 4, Page 77, Date 1906-07
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The Great Gray Owl
Vol 20, Iss 4, Page 79, Date 1906-07
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Curious Natural Freak
Vol 20, Iss 4, Page 81, Date 1906-07
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Report of the Entomological Branch, 1907
Vol 20, Iss 4, Page 82, Date 1906-07
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Records of rare birds in the Maritime Provinces, 1905
Vol 20, Iss 4, Page 88, Date 1906-07
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Nature Study No. 36 - Chemical Union
Vol 20, Iss 4, Page 89, Date 1906-07
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The Species of Botryocrinus
Vol 20, Iss 5, Page 93, Date 1906-08
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Some New Plants from the Canadian Rockies and Selkirks
Vol 20, Iss 5, Page 105, Date 1906-08
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Richardson's Merlin
Vol 20, Iss 5, Page 111, Date 1906-08
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The Golden Winged Warbler in Manitoba
Vol 20, Iss 5, Page 112, Date 1906-08
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Correspondence
Vol 20, Iss 5, Page 113, Date 1906-08
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Mountain Wild Flowers of Canada, by Julia Henshaw [Review]
Vol 20, Iss 5, Page 114, Date 1906-08
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Notes on some Land and Fresh Water Shells from British Columbia
Vol 20, Iss 6, Page 115, Date 1906-09
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Extracts from the Diary of the late Robt. Elliott (Continued from Vol. XIX p. 178)
Vol 20, Iss 6, Page 120, Date 1906-09
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Bird Migration, 1905
Vol 20, Iss 6, Page 127, Date 1906-09
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Correction
Vol 20, Iss 6, Page 131, Date 1906-09
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Mosses with a Hand-Lens: A New Nature Study Book, by A. J. Grout [Review]
Vol 20, Iss 6, Page 132, Date 1906-09
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Notes on Cyrtoceras cuneatum
Vol 20, Iss 7, Page 133, Date 1906-09
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Contributions to Canadian Botany XVII
Vol 20, Iss 7, Page 135, Date 1906-10
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The Spring Migration of Birds at Ottawa of the year 1906, compared with that of other seasons
Vol 20, Iss 7, Page 144, Date 1906-10
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Nature Study No. 37 - The Cecropia Emporor Moth
Vol 20, Iss 7, Page 149, Date 1906-10
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Animal Coloration
Vol 20, Iss 8, Page 153, Date 1906-11
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Contributions to Canadian Botany XVIII
Vol 20, Iss 8, Page 162, Date 1906-11
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Limnaea megasoma
Vol 20, Iss 8, Page 172, Date 1906-11
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Nature Study No. 38 - School Exhibits of Pressed Plants
Vol 20, Iss 8, Page 173, Date 1906-11
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The Cryptogamic Flora of Ottawa
Vol 20, Iss 9, Page 177, Date 1906-12
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An addition to our Manitoba Warblers
Vol 20, Iss 9, Page 189, Date 1906-12
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Cecropia Emperor Moth
Vol 20, Iss 9, Page 189, Date 1906-12
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Note on the "Teal-Weed " of St. Clair Flats
Vol 20, Iss 9, Page 190, Date 1906-12
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Studies of Plant Life in Canada, by Catherine Parr Trail [Review]
Vol 20, Iss 9, Page 191, Date 1906-12
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Nature Study No. 39 - Agencies for the Promotion of Nature-Study in Canada
Vol 20, Iss 9, Page 193, Date 1906-12
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Description of Eupithecia fletcherata, a Geometric Moth from Ottawa, New to Science
Vol 20, Iss 10, Page 200, Date 1907-01
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Infusorial Earth near Lake Windemere, B. C
Vol 20, Iss 10, Page 205, Date 1907-01
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Nature Study No. 40 - Manual Training - the Mechanical Hobby
Vol 20, Iss 10, Page 207, Date 1907-01
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A Swarm of Butterflies
Vol 20, Iss 11, Page 211, Date 1907-02
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The Fulvous Tree-Duck in British Columbia
Vol 20, Iss 11, Page 213, Date 1907-02
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Notes on the Skeleton of a White Whale or Beluga, Recently Discovered in Pleistocene Deposits at Pakenham, Ontario
Vol 20, Iss 11, Page 214, Date 1907-02
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Some Notes on Winter Birds
Vol 20, Iss 11, Page 217, Date 1907-02
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Nature Study No. 41 - Manual Training II, The Machinist's Art
Vol 20, Iss 11, Page 225, Date 1907-02
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Some Curious Facts about Fishes
Vol 20, Iss 12, Page 229, Date 1907-03
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The Disappearance of the Passenger Pigeon
Vol 20, Iss 12, Page 236, Date 1907-03
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Correspondence
Vol 20, Iss 12, Page 238, Date 1907-03
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Notes on some Fresh- Water Shells from Manitoba
Vol 20, Iss 12, Page 239, Date 1907-03
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Meteorological Observations at Ottawa
Vol 20, Iss 12, Page 241, Date 1907-03
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Nature Study No. 42 - The Relation of Sparrows to Agriculture
Vol 20, Iss 12, Page 247, Date 1907-03