hed upon.

TYPHOID FEVER is a germ disease and communicable. Vaccination is the
first preventive; protection of water supply is the second; thorough
disposal of wastes is a third; and sharp punishment for violation of
sanitary regulations is a fourth. Habits of personal cleanliness will
do much to prevent any such disease.

DYSENTERY is very common in field service, but may be prevented by
same methods as for typhoid fever, save for vaccination; men suffering
from this malady should be isolated, if possible, and utmost
precaution taken to prevent spread of the disease.

MALARIA is a mosquito disease; get rid of mosquitoes and then you will
get rid of the carrier of the germs. Quinine may act as a preventive.
Cases should be isolated, if possible.

TONSILITIS AND COLDS may be combatted very effectively by proper
precautions as to ventilation.

MEASLES.--Very important but little known; isolation recommended.

There are many other diseases concerning which the men should be
instructed, but lack of space prevents further treatment of them. They
should be taught the proper treatment of blistered feet, for they
incapacitate a great many men; the chief causes are ill-fitting shoes
and our old friend "uncleanliness." Shoes are the most important
article of clothing of the infantryman; each man should have one pair
well broken in for marching, and two other pairs. Socks should be
soft, smooth and without holes--also _clean_. Further steps for the
prevention of blisters are; hardening of the skin by appropriate baths
for the feet; soaping the feet; or adopting some other means of
reducing the friction of the foot against the sock. _Treatment_--Wash
the feet; open the blister at the lowest point, with a clean needle;
dress with vaseline or other ointment and protect with adhesive
plaster, care being taken not to shut out the air. Zinc oxide plaster
is excellent. Sterilize a needle; thread it with a woolly thread and
run it through blister, leaving ends projecting about one-half inch;
this will act as a wick and dry up blister in short time.

FIRST AID.--Explain to the men the uses of the first aid packet and of
the pouch carried by the Medical Corps. (This pouch is being replaced
by web-belts with pockets.)

WOUNDS may be classed as ordinary cuts, inside wounds, lacerated,
punctured and poisoned wounds. For ordinary minor wounds--iodine and
exposure to the air are usually sufficient. _War wounds_ are usually
caused by s