576 EVERYDAY SCIENCE 



PROJECT XI. How to Remove Rust Stains 



The simplest method is to wet the stain with lemon juice, cover 

 with salt, and expose to the sun. 



If this fails, wet the stain and cover it with a mixture of equal 

 parts of cream of tartar and salt. Expose the spot to the sun, hold 

 it in the steam of a tea-kettle, or over a hot plate as suggested in 

 Project IX. This may be used on any kind of fabric and is not 

 likely to injure even colored fabrics. If it does affect colors, sponge 

 lightly with ammonia and follow with an application of chloroform. 



On any white fabric, dilute oxalic acid, salts of lemon, or Javelle 

 water may be used. Follow either of the first two with ammonia 

 and rinse in clear water. 



PROJECT XII. How to Remove Fruit Stains 



Fresh Fruit Stains. All fruit, tea, and coffee stains should be 

 treated while they are fresh. Plum, peach, and blackberry stains 

 are especially stubborn if they become set. While the stain is 

 fresh, stretch the cloth over a bowl, cover the stain with baking 

 soda or washing soda, and pour 'boiling water through the cloth until 

 the soda is dissolved. If necessary, let the cloth sag into the water 

 in the bowl for a while. 



Another method is to soak the fresh stain in warm milk and salt, 

 cover with salt, and expose to the sun. 



Old Fruit Stains. To a fruit stain on any white fabric, apply 

 Javelle water, salts of lemon in solution or dilute oxalic acid and 

 follow with ammonia. 



For wool, silk, delicate and colored fabrics, wet the stain with 

 a mixture of equal parts of alcohol and ammonia. Sponge gently 

 with alcohol until stain is removed. Sponge gently with chloroform 

 to restore color if necessary. 



PROJECT XIII. How to Remove Mildew 



(a) If the fabric will stand it, boil in strong borax water, 

 (fe) Soak the stain in buttermilk or sour milk and salt, cover with 

 salt, and expose to the sun. 



