( 291 ) 
Tents must, be thoroughly dried before being put away. A few pounds of 
naphthaline rolled up with them will keep away insects. 
Tents, to scour and clean. —Use Dacca soap, or a fairly strong solution of 
sujee mutty and water and scrub well. To prevent mildew, 1 lb. sulph. zinc m 
40 gals, water, then add 1 lb. sal. soda, and, when dissolved, add 2 oz. tartaric 
acid. Soak 24 hours and dry without wringing. . 
Twist barrels , browning for. —Black brimstone, i oz. ; tincture of steel, 
1| oz ; blue vitriol, 1 oz. ; corrosive sublimate, i oz. ; copperas, 2 oz.; nitric 
acid, 2 drms ; spirits of nitre, 1* oz. Add three parts of rain-water and bottle. 
Proceed as for ordinary browning (see Gun barrels to brown). Ihis mixture 
causes the twist of the barrel to be visible after application. 
Water-bag or Chagul.— See description in chapter on Camp Equipment. 
Water , muddy , to settle— A pinch of powdered alum will quickly precipitate 
all matter held in suspension. 
Water, to purify.—Use a few crystals of permanganate of potash, then boil. 
But this is a very rough and ready method. The most perfect thing known is the 
“Water Sterilizing Tablet” sold by Messrs. Smith, Stamstreet and Co., Calcutta. 
Water Telescope.—A. long tin tube 4 or 5 in. in diameter with a piece of 
glass let in at the lower end, and the outside painted khaki. An mteres mg 
and useful accessory to bottom fishing in tanks. 
