320 Scientific Intelligence. 
may pt i : ge ch 
University will receive and forward any American collections des- 
tined for it. S 
number of years ago, he had been led to an observation on the 
none. He @ 
first soppoese the ants had all been destroyed, but in the attic he 
observed a few feasting on some dead house flies, which led him 
ai a : 
sweet cake. He accordingly distributed through the house pieces 
of bacon, which were afterw: 
rds found swarming with a astra 
a ith the same result for several days, when, in like 
manner with the cake, the ants finally ceased to visit the bacon. 
leces of cheese Were next tried, with the same results; but yin 
an undoubted thinning in the multitude of ants. When the 
