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tJVO 



ZOOLOGY. 



[Sect. XI. 



others studded closely with copper and other nails, and 

 some should be In their natural state. 



When on shore in search of terrestrial moUusca (land- 

 shellsK the collector must not he content with a close 

 examination of the trunks, leaves, and stems of trees, and 

 other plants, but must turn up all decayed vegetable 

 substnnces, especially in moist places, and there dig into 

 the earth, more particularly about the roots of trees, and 

 under overshadowing bushes and shrubs. Stones must 

 be lifted, — herbaceous plants must be pulled up and 

 their roots inspected,-— and, if the boat's crew be at hand, 

 fallen trunks of trees should be turned over with hand- 

 spikes. All ova must be preserved; and the height 

 above the level of the sea at which the specimens were 

 taken, and the plants on which any of them were feeding, 

 must be noted. In the latter case the plants should be 

 preserved in an herbarium, and numbered as directed 

 under the head of insects. 



No 



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should be passed without examining the rushes and other 

 plants there growing, for fresh-water testacea. At the 

 proper season their ova may be found adhering to living 

 and dead stems of plants, leaves, &c. 



No bird, insect, shell, nor any other zoological spe- 

 cimen should be neglected because it does not strike the 

 eye as beautiful, or because it is small and appears to be 



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cimens 



paclced, it should never be opened till it arrives at the 

 place of its destination. If it is wished to have a few 

 duplicates at hand, for the purpose of •- 



xchange with other 





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