234 POULTRY DISEASES 



Properties — A colorless or faintly yellowish liquid. It has a 

 characteristic aromatic odor, and a pungent, spicy and cooling 

 taste. 



Action — It is an antiseptic and disinfectant, being three times 

 as effective as carbolic acid. 



Indications — Catarrhal conditions of the nasal mucous mem- 

 branes, and mucous membranes of trachea and bronchi. 



Use — As a steam inhalation or as a spray or injection in catarrh 

 and roup combined with other drugs, as follows: 



Oil of eucalyptus 20 drops 



Oil of thyme 1 dram 



Menthol 10 grains 



Oil petrol 2 ounces 



Mix and inject into nasal passage. 



FERROUS SULPHATE (Copperas, green vitriol) 



Source — Iron wire is dissolved by boiling in diluted sulphuric 

 acid. 



Properties — Large, pale, bluish green, monoclinic prisms, with- 

 out odor and having a salty taste. Changes to a fine powder on 

 being exposed to air. 



Action — Externally it is an astringent and stimulant. 



Indications — In a solution of one ounce to one gallon of water 

 for wounds of any kind in the fowl. 



FORMALDEHYD (Formic aldehyd) 



Source — Obtained by partial combustion of wood alcohol, with- 

 out ignition, by evaporation of the spirit in contact with a hot, 

 platinized, asbestos plate. 



Properties — A pungent gas. Sold in aqueous solution (40 per 

 cent gas in water). It is very volatile. 



Uses — A strong disinfectant. Used in about the same dilution 

 as lysol for disinfecting purposes. 



GENTIAN, POWDERED 



Source — Obtained from the gentian roots. 



Properties — A yellowish brown powder possessing a bitter taste. 

 Action — Improves the appetite and stimulates digestion. 

 Indications — Indigestion, loss of appetite and malnutrition. 

 Dose — Same as for ginger, which see. 



GINGER, POWDERED (Zingiber) 



Source — From the roots of the Zingiber officinale. 

 Properties — A yellowish-brown powder with bitter taste. 

 Action — A bitter tonic. 



Indication — Indigestion, loss of appetite, malnutrition. 

 Use — Combined for tonic with other drugs, as follows: 



Powdered ginger 2 ounces 



Powdered gentian 2 ounces 



Powdered nux vomica 2 ounces 



Mix one teaspoonful to each twelve fowls. Given twice daily in 

 wet mash. 



GLYCERIN 



Source — A liquid obtained by the decomposition of vegetable or 

 animal fats or fixed oils. 



Properties — A clear, colorless liquid of a thick, syrupy consist- 



