BIRD'S CHRISTMAS TREE.
A special Christmas tree for birds was long ago designed by Baron von Burlepsch, a well-known German ornithologist ; and it may be useful to recall his methods by way of illus- trating a delightful experiment made this winter by the Ornithological Society of Gyonk in Austria. The details were given in the Observer. The society grew a great number of small gourds (the name is omitted), cut off the ends and hung them up on fir trees. They proved very popular. Baron von Burlepsch's method was to mix a variety of seeds, berries, bread, flour, meat and ants' eggs with about one and a half times the bulk of fat and pour this compound when melted over the fit trees. The mixture . for the "food tree" and heating apparatus used to be on sale in Buren in Westphalia. The Burlepsch devices were specially recommended by the Minister of Agriculture in or about the year 1907.
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