Circular 21 - Insecticides and Subsidiary Materials 
Table of Contents (Continued) 
Page 
Derris Powder 25 
Diatomaceous Earth 26 
Diphenylamine 2? 
Duponol 'jV. a 28 
Ether ., 28 
Ethylene Dichloride 29 
Ethylene Oxide 30 
Ely Sprays 31 
Formalin 33 
Fuel Oil 34 
Gardinol W. A 35 
Gasoline 36 
Hydrocyanic Acid Gas 37 
Hydrogen Peroxide 40 
Iodine 41 
Iodoform 41 
Kerosene 42 
Lamp Black 43 
Larkspur 44 
Lime = = 45 
Lime Sulfur ( Dry) 46 
Linseed Oil , rJoiled 46 
Lubricating Oil 47 
Menthol 48 
Mercuric Chloride 49 
Methyl Bromide 50 
Mineral Oil 51 
Molasses (i^lack Strap) 52 
Moth Proofing Materials 52 
Naphthalene 53 
Nicotine^ Sulfate 5A- 
Oil of Citronella 55 
Olive Oil 56 
Orthodichlorobenzene 56 
Orvus W. A 57 
Paradichlorobenzene 58 
Paris Green 59 
PentachloroTDhenol 60 
