ON THE SUBJECT OF PLAGUE 
881 
Scheme based on the Experience of the U.S. Public Health 
Service 
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(a) Plague laboratory 
(b) Delineation of in- 
fected areas 
fRodent destruction 
Rat-proofing 
Fumigation S0 2 , CO, 
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Rat proofing 
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'Evacuation 
Intensive rodent 
destruction 
\Flea destruction 
( Examination of rodents. 
Examination of human 
plague suspects. 
Rodent examination. 
Epidemiology of human cases. 
‘ Sentinel ’ guinea-pigs. 
{ Trapping. 
Poisoning. 
Miscellaneous. 
| Protection of food supply. 
(Elimination of harbourage. 
[Ships. 
•] Cargo or railway freight. 
(Baggage. 
(Railway carriages, 
j Railway stations and freight 
( warehouses. 
(Fumigation HCN, S0 2 . 
J Immediate removal of har- 
( bourage. 
(Fumigation. 
Coal-oil emulsion. 
-I General cleanliness. 
(Attention to household pets 
\ (cats and dogs). 
INSECTS AND THEIR RELATION TO SOME 
DISEASES OF STOCK 
Lecture to Members. By R. E. Montgomery 
When I accepted the invitation of our energetic Secretary 
to offer for discussion before the Society a paper on Insects 
and their Relation to some Diseases of Stock, I did not quite 
realise the enormity of the task imposed. 
Many people, when they see or hear of natural history, 
