There are those, however, who will obstinately conduct their campaign against the adult mosquito. If energetic, such persons will search the house with a kerosene cup attached to a stick; when this is held under resting mosquitoes the insects fall into the cup and are destroyed. Those possessed of less energy daub their faces and hands with camphor, or with the oil of pennyroyal, and bid defiance to the pests. With others it is, Slap! slap!--with irritation mental as well as physical; for the latter, entomologists recommend household ammonia. FOOTNOTES: [3] See Bulletin No. 25, U. S. Department of Agriculture, Division of Entomology. Part II PURE FOOD FOR THE HOUSEKEEPER BY S. JOSEPHINE BAKER CHAPTER I =How to Detect Food Adulteration= Adulteration when applied to foodstuffs is a broad, general term, and covers all classes of misrepresentation, substitution, deterioration, or addition of foreign substances; adulteration may be either intentional or accidental, but the housekeeper should be prepared to recognize it and so protect herself and her household. Food is considered adulterated when it can be classified under any of the following headings: =DEFINITIONS OF ADULTERATION.=--(1) If any substance has been mixed or packed with it so as to reduce or lower or injuriously affect its quality or strength. (2) If any inferior substance has been substituted for it, wholly or in part. (3) If any valuable constituent has been wholly or in part abstracted from it. (4) If it consists wholly or in part of diseased or decomposed or putrid or rotten animal or vegetable substance, or any portion of an animal unfit for food, whether manufactured or not, or if it is the product of a diseased animal or one who has died otherwise than by slaughter. (5) If it be colored or coated or polished or powdered, whereby damage is concealed or it is made to appear better than it really is. (6) If it contains any added poisonous ingredient or any ingredient which may render such article injurious to health; or if it contains any antiseptic or preservative not evident or not known to the purchaser or consumer.