EUCALYPTUS. 143 



I have tried a smudge of Eucalyptus leaves, meaning 

 always Blue gum, on flies that came into my house in 

 great numbers during the hauling of barn-yard manure 

 in one of my orchards. 



The smudge was made in a room 20 x 20 with French 

 windows. The large chimney and loose window fitting 

 made it anything but air-tight. 



The flies from being aggressive, all collected on the 

 windows as though they would have escaped if possible, 

 and became very sluggish. A few died. 



Some other leaf smudge would doubtless have done as 

 much. I can recollect making grass smudges in the Wyo- 

 ming Sloughs in banked up tents to kill the mosquitoes so 

 that we could sleep. This process was exceedingly disa- 

 greeable while going on but a great comfort to the sleep- 

 ers in that extraordinary mosquito haven. The great 

 question then was which was worst, the day or the night 

 mosquitoes. 



During my residence in Egypt I followed the custom of 

 the country and had during the day an attendant who con- 

 stantly swished the flies away with a long' switch of split 

 reeds. 



The wire screen is a means of keeping flies and also 

 light and free circulation of air out of a house. 



But these, as one of our literary lights says, are all 

 other stories. 



The* claimed effect of Eucalyptus trees on bacterial life 

 can be gathered by the instances mentioned below. 



While these instances do not conclusively show any effect 

 upon malaria by Eucalyptus trees, they do show by the 

 general improvement in health where these trees succeeded 

 that there is nothing in them against health. 



