. The Canadian field-naturalist. 228 The Canadian Field-Naturalist Vol. 82. H. A. Thompson, National Collection of Nature Photographs Figure 1. Southern Flying Squirrel at Meach Lake, Quebec. H. A. Thomson during the winter of 1963 at Meach Lake, Gatineau County, Quebec. The external measurements of the four specimens are, (in mm): 230, 235, 230, 229; 105, 114, 104, 103; 30, 30, 31, 30; 21, 20, 20, 19; weights (of 3): 46.5 grams, 46.5 grams, 67.3 grams. Cranial measure- ments are: greatest length, 33.7, 33.6, 33.5, 34.1; zygomatic breadth, 18.8, 20.6, 18.7, 21.1; mastoidal breadth, 17.4, 17.6,
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. The Canadian field-naturalist. 228 The Canadian Field-Naturalist Vol. 82. H. A. Thompson, National Collection of Nature Photographs Figure 1. Southern Flying Squirrel at Meach Lake, Quebec. H. A. Thomson during the winter of 1963 at Meach Lake, Gatineau County, Quebec. The external measurements of the four specimens are, (in mm): 230, 235, 230, 229; 105, 114, 104, 103; 30, 30, 31, 30; 21, 20, 20, 19; weights (of 3): 46.5 grams, 46.5 grams, 67.3 grams. Cranial measure- ments are: greatest length, 33.7, 33.6, 33.5, 34.1; zygomatic breadth, 18.8, 20.6, 18.7, 21.1; mastoidal breadth, 17.4, 17.6, 17.0, 17.5; least inter-orbital breadth, 6.2, 6, 8, 6.6, 6.6; length of nasals, 8.8, 8.7, 8.7, 8.9; maxillary tooth-row, 6.0, 6.3, 6.0, 6.2. The previous northernmost record for Canada is a specimen (NMC 11330), collected in 1931 by Mr. Clyde L. Patch from Clayton, Lanark Co., (45° U' N; 76° 20' W), Ontario, and reported by Anderson (1947: 123). Since the above was written our atten- tion has been called to a specimen (R 121) in the Redpath Museum, McGill University, Montreal, collected by Amy Clark, December 10, 1951, at Hudson, Vaudreuil Co. (45° 27' N; 74° 09' W), Quebec. The external measurements of this female are: 230, 87, 30. Reference Anderson, Rudolph Martin. 1947. Cata- logue of Canadian Recent Mammals. Na- tional Museum of Canada, Bulletin No. 102. Phillip M. Youngman David A. Gill Museum of Natural Sciences National Museums of Canada Ottawa, Ontario Accepted April 3, 1968 Reaction of a Semipalmated Plover to Covering of its Eggs with Sand and Seaweed Respectively H. Laven (1949 Vogel aus Augentiere. Festschift Streseman, Verhaltensfor- schung 3:147-152) published the results of some experiments with Ringed Plovers. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ottawa Field-Naturalists' Club