458 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



oughly washed with distilled water. Five parts of perman- 

 ganate of potash are now added, and the composition, when 

 dried, is made up into tablets, and wrapped in paper satu- 

 rated with paraffine. 18-4, January 12, 1872, 429. 



COMPOUND FOR WASHING LINEN. 



According to the Moniteur Scientifique, an excellent sub- 

 stance for washing linen, and one not possessing the destruct- 

 ive effect of soda and other washing powders, is prepared as 

 follows : Two pounds of soap are dissolved in five and a half 

 gallons of nearly boiling water, and to this is added three 

 large table-spoonfuls of ammonia and one of spirits of turpen- 

 tine. In this the linen is to be soaked for three hours, when 

 it is readily cleansed, requiring but little rubbing. Ammonia 

 does not affect linen nor woolen fibre as soda does. 15 A, 

 April 20, 18*72, 501. 



CHLORIDE OF LIME FOR NOXIOUS VERMIN. 



Chloride of lime, it is stated, furnishes the best means for 

 driving away noxious insects and rodents. It appears to be 

 especially obnoxious to rats and mice, so much so, indeed, 

 that they are said to leave at once when chloride of lime is 

 scattered about. The same substance is also said to aid in 

 freeing fields, farms, gardens, etc., from fleas, caterpillars, etc., 

 the only requirement being the sprinkling of the infected 

 places, during dry weather, with finely pulverized chloride of 

 lime, and to continue it occasionally as necessity may re- 

 quire. 10 (7, January, 1872, 14. 



LABELS ON BOTTLES. 



It often happens that written labels on bottles are wetted 

 by the contained liquid, and the ink is thus caused to run, 

 rendering the inscription illegible, and producing an unsight- 

 ly appearance. It rs stated that if, after the label is com- 

 pletely dry, it be rubbed over with a piece of paraffine, so as 

 to impart a slight coating of this material to it, it will resist 

 the action of acids, alkalies, water, and other substances. 

 The paraffine should be well laid on, and when applied, the 

 surface of the paper may be smoothed by rubbing with an 

 ivory paper-cutter. 6 C\ 1871,468. 



