accustomed to report a great deal of dead brood, thinking that the brood has died as a result of cold, lack of protection, and the like. In many cases the death of the brood is largely due to a lack of nitrogenous food. Since nectar or honey represents the carbohydrate food available to the bees, more emphasis should be placed on the nitrogenous food as supplied by the pollen. The value of pollen as a constituent of the larvel food of the honeybee is usually underestimated.