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Show Flies and Grms. Althoueh it Is ahont fort years since it .is known that flls tveer the aeon's for transmitting dlseast germs from place to place. It has been hut recently that the knowledge has been put to rt:ictl nl uses In tin- prevention of disease dis-ease It is now a matt, i K'hlcll BftOUld be known by every Intelligent man for his own protection. Boards of health must act in this direction ami hospitals must take particular care to prevent flies reaching any lnfe tious materia Attention has recently been directed to the matter by the success unending m warfare agalnBl Hies In the Manila prison to stop an epidemic of cholera whi.-h ufis .Lilly carrying off from two to five of the convicts The water vis free of the Infection und so wcer the foods, yet in spite of ;iii precautions the disease persisted lii attacking men who had not been outside th walls for a long time. So It was finally decided that the Infection was crlred hy (lies, and the most drastic menus were taken to prevent these Insects reaching any infections material in the prison, and especially were thej excluded from the foods. Screen doors and windows were placed where necessary, fly paper was used In lain" amounts in enpttire occasional occa-sional Intruders and the epidemic promptly . . as I n has been conclusively proved that flics are responsible for the spreael of typhoid fever here Htid there, where-sanitary where-sanitary conditions are not good anel it is possible for flies to reach the Infet -tious materials Of course. In the great majority of cases it Is known tha the germs are carried from one patient to the next through the drinking water Into w hich ihe ha. he. n introelui cd ill sewerage, but tin re are little local outbreaks lu which th water Is known to be free of the germs and In which ih. foods particularly the milk arc alio al-io pure, in these cases it is found that the local conditions are such us to make It an easy matter for tiles to carry car-ry the disease germs aud deposit them upon foldt The military camps, both In our rc-c. rc-c. nt war and In the Hor war are examples ex-amples of this method "i the transmit slem of l; phold fevei To one who bat never lived In such conditions It is difficult diffi-cult to appreciate th unsanitary sm-roundlnxs sm-roundlnxs sure to arise w ithin t wo or three weeks S warms of files abound, atui it is practically impossible to prevent pre-vent them walking over the foods and spreading Infection which they have elsewhere obtained, ti mmisslons of scientists who have Investigated this on.- point havi reported that the awful epidemics which disgraced the America Ameri-ca i ind Knglish camps w i spre.id in no other way than by the swarms of flies whli h pester all military camps In warm weather n is generally said that (lies do not perform any serv ice whl h is indlspen-sable. indlspen-sable. and tahl the world would move along just as well if they were all es terminated This mistaken idea would neit be mentioned If we would only remember, re-member, what Is called the balance of nature The world Is full of living things, each on. serving as a food to some other It Is evident, then, that if any species is killed o ffthere will be a subsequent distress of elimination of others, until a new balum . rt obtained. ob-tained. So It Is quite likely that the elimination of the riles would bring a disaster Of some sort. New York Times. |