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well searched;, and the holes probed or 

 smoked ; and the insects found on or near 

 foreign timber, kept separate and labelled. 



Beating Trees. Beating into a clap net or 

 umbrella has already been recommended, but a 

 far more profitable mode may be adopted, by 

 two persons carrying a large sheet, while a third, 

 with a pole twenty or thirty feet long, beats the 

 highest branches of trees. Not only rare beetles 

 and other insects are thus obtained, but also 

 caterpillars, which only feed on the highest 

 branches. From oaks the beautiful caterpillar 

 of the purple emperor hutterjly (Apatura Iris) 

 may be beaten. A sheet laid on the ground in 

 a garden or wood in a hot Summer's day will 

 attract many insects. As sw^eets will attract 

 them within doors, there is little doubt but they 

 might be employed to advantage without. 

 Sheets of white paper smeared with honey 

 water, beer, and sugar, or sugar sprinkled over 

 them would answer the purpose. 



Taking Caterpillars. A method of coUect- 



G 3 



