_Cooperative Marketing Association._ The duck growers on Long Island have formed a cooperative marketing association. This association maintains its own house in New York City and sells practically the entire output of Long Island ducklings, controlling probably 90%. During the year 1919 there were in the neighborhood of 800,000 head of ducks marketed through this house. Practically all of the capital stock of this concern is held by the duck growers and they are not allowed to sell any of their stock without first offering it to the association. _Prices for Ducks._ Early in the season the ducklings bring the best prices, that is to say from March 1 to May 1. Then as the output of ducks increases prices gradually drop. The heaviest shipments occur in June, July and August. In September as the output of ducks begins to drop off the price begins to climb a little. The following prices as quoted in the New York Produce Review show the range from March, 1920, to June, 1921. Long Island Ducklings--Fresh Dressed 1920 March 31 45c per lb. April 21 45c " " " 28 38c " " May 5 35c " " " 12 35c " " " 26 35c " " June 2 35c " " " 9 35c " " " 16 35c " " " 23 35c " " " 30 35c " " July 7 35c " " " 14 35c " " " 21 35c " " " 28 35c " " August 4 36c " " " 11 36c " " " 18 36c " " " 25 36c " " September 1 36c " " " 8 37c " " " 15 37c " " " 22 38c " " " 29 38c " " October 6 38c " " " 13 38c " " " 20 39c " " " 27 39c " " November 3 40c " " 1921 March 30 48c per lb. April 6 46c " " " 13 38c " " " 20 38c " " " 27 38c " " May 4 35c " " " 11 32c " " " 18 28c " " " 25 28c " " June 1 28c " " The following quotations from the same source give the prices for frozen Long Island ducklings. 1920 January 7 41c per lb. " 14 41c " " " 21 41c " " " 28 41c " " February 4 41c " " " 11 41c " " " 18 41c " " " 25 41c " " March 3 41c " " " 10 41c " " " 17 41c " " November 10 40c " " " 17 40c " " " 24 40c " " December 1 40c " " " 8 40c " " " 8 40c " " " 15 40c " " " 22 40c " " " 29 40c " " 1921