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HINTS TO TRAVELLERS. 
They should be wrapped in oiled paper or india-rubber tissue, and kept 
in a tin box. 
A supply of bandages will also be needed. Each bandage should be 
two inches in width by six feet in length. 
Dressing case .—The traveller should provide himself with a surgical 
dressing case. A suitable and inexpensive one is made by Messrs. 
Down Bros., St. Thomas’s St., London Bridge; it contains 1 pair of 
scissors, 1 pair of Spencer Wells’ artery forceps, 1 probe, 1 scoop and 
grooved director, 1 knife with two blades, 1 small saw with a detachable 
handle, and a packet containing silk, wire, needles, and pins. 
All active poisons mentioned in the following pages are marked with 
an asterisk (*). 
Alum. —Dose, five to ten grains. Is occasionally used as an internal 
astringent in the treatment of diarrhoea. 
A solution containing five grains to the ounce of water may be used 
as a mouth wash for bleeding or inflamed gums, as a gargle for relaxed 
and sore throats, or as a lotion for inflamed eyes. 
Ten to twenty ounces of a solution containing five grains to the ounce 
is sometimes used as an enema to check the diarrhoea in chronic 
dysentery. 
The “ soloid ” of alum weighs ten grains. 
Ammonia .—Three preparations of ammonia, viz., Sal volatile, Car¬ 
bonate of ammonia, and Liquor ammonise, are extremely valuable as 
stimulants, and in this respect they are to be preferred to alcohol. All 
three are similar in their action, and are valuable on account of their 
stimulating effect upon the heart in cases of fainting, or collapse caused 
by snake-bite, bullet-wound, or other injury; they relieve spasm, and 
promote sweating in feverish states. They also cause free expectoration, 
and are therefore useful in bronchitis. 
The chief objection to these drugs is that their strength is rapidly lost, 
unless they are kept in well-stoppered bottles, and in the dark. 
All preparations of ammonia should be administered in aboat one 
ounce of water. 
Sal volatile , or aromatic spirit of ammonia. —Dose, twenty to sixty 
drops for a single administration, or up to thirty drops if repeated 
frequently. This is the most convenient and pleasant preparation of 
