Journal of conchology . specific name for the above species, but experiencein many branches of natural history tends to make one sceptical of even the mostfamiliar legends, and therefore I was not surprised at the negative results of thefollowing experiments. Having procured an ordinary specimen of A. anatina^measuring 2-!,- by il inches, I proceeded to a neighbouring common, and calledup a flock of tame ducks, which came expecting to be fed. I threw the musseLdown before them, and they gathered eagerly roun 1 it, but after examining it closelythey turned away and waddled off with a universal
Journal of conchology . specific name for the above species, but experiencein many branches of natural history tends to make one sceptical of even the mostfamiliar legends, and therefore I was not surprised at the negative results of thefollowing experiments. Having procured an ordinary specimen of A. anatina^measuring 2-!,- by il inches, I proceeded to a neighbouring common, and calledup a flock of tame ducks, which came expecting to be fed. I threw the musseLdown before them, and they gathered eagerly roun 1 it, but after examining it closelythey turned away and waddled off with a universal chorus of disappointment. Itried a second flock of ducks and three flocks of geese with exactly the same couples of tame swans acted in a similar though rather more dignified manner,nor would they have any more to do with a young A. cygiiea ; and yet presumablyLinne had some reason for his appellation.—Lio>^el E. Aoams {Read bajore theSocielv, November qih, 1904). Journal of Conchology, Vol. U. Plate Jfy[ cj i^ t/)lari^H^^ 193 THE JOURNAL OF CONCHOLOGY. Vol. II. JULY, 1905. No. 7. PROFESSOR LANGS BREEDING EXPERIMENTS WITH HELIX HORTENSIS AND H. NEMORALIS ; An Abstract and Review. By a. D. DARBISHIRE, (Read before the Society, March 8, 1905). Professor Langs experiments^ with the above-mentioned snailsdeserve careful study from the student of organic evolution in general,because they compel him to ask himself what he means when he statesthat Helix nemoralis and FI. hortensis are distinct species ; and fromthe student of heredity in particular, because the results of breedingdifferent varieties of H. hortefisis are adduced as a brilliant confirma-tion of a part of Mendels law. A knowledge of Mendelian principlesthat will enable the reader to understand their connection with Langsresults is easily acquired;^ but a clear appreciation of the nature ofthese principles is not widely distributed. It is in the hope thatmembers of this society may start experimen
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