56 SECOND REPORT ON ECONOMIC BIOLOGY. 



their bodies and in their intestines the eggs of quite a large number 

 of species of parasitic worms. Eggs conveyed in either of these ways 

 may remain alive and subsequently cause infection. In view of the 

 recent work carried out at Cambridge for the Local Government 

 Board, and other investigations made elsewhere, it should no longer 

 be necessary to urge upon corporate bodies the necessity for a proper 

 system of control and prevention. In other countries the question of 

 the storage and removal of stable manure and household refuse, and 

 the protection of food for human consumption, have received prompt 

 and efficient attention by putting into force a few simple regulations, 

 and this action has been followed by a distinct benefit to the general 

 public health without causing any great amount of inconvenience. 



It is only a question of time before the British public will demand 

 that similar regulations shall be put into force in every city, town, 

 and village, and the sooner they make such demands heard, the sooner 

 shall we remove from our midst a danger full of potentialities to our- 

 selves and our children, and detrimental to the public generally. 



During the past month or so I have been appealed to by various 

 individuals and corporate bodies for the nature of such regulations, 

 and briefly they may be repeated here. 



1. All stable manure should be stored in a bin or pit provided 

 with a suitable cover, constructed so as to prevent the ingress or 

 egress of flies. 



2. The compulsory burning on the part of householders of all 

 waste vegetable and other organic matter. 



3. The collection of the contents of dustbins and ashpits at 

 intervals of not more than 10 days. 



4. The prohibition of the tipping of any organic matter on waste 

 land in crowded or residential neighbourhoods. 



5. The effectual screening of food products exposed for sale 

 between April ist and October 3ist. 



Householders in the meantime would do well to pay attention 

 to No. 2, and to see that all dustbins are kept tightly closed, the 

 windows of kitchens and larders properly screened, and milk, fruit, 

 in fact, all food kept under muslin." 



In his recent work on the House Fly, 1 Dr. L. O. Howard, in 



House Fly Disease Carrier. New York, 1911. 



