On the Chicago Mercantile Exchange Monday except for butter which had a strong day, milk futures and cash dairy prices fell, especially block cheese. Class III milk fell 3 cents in May to 16.30, June fell 15 cents to $16.16 Second half months traded 3-10 cents lower with an average at 16.53/cwt. Dry whey was down $.0075 at $.34 cents per pound. Two sales were recorded at that price. Forty-pound blocks were down $.0125 at $1.6675 per pound. One sale was recorded at that price. Barrels were down $.0725 to $1.6375 per pound. Seven sales were recorded from $1.6375 to $1.67.50. Grade AA Butter was up $.02 at $2.36 per pound. Four sales were recorded from $2.35 to $2.36. Nonfat dry milk was down $.0075 at $1.06 per pound. One sale were recorded at that price.