PREFACE. XX111 



Investigation of insects. Seasons in which they 

 appear. Instruments and mode of taking- and 

 preserving them, — with other particulars which 

 it is not necessary here to enumerate. 



The List of Authors quoted in this work will 

 be found in the last volume. It was intended to 

 have given with this all the plates illustrative of 

 the orders, but only three could be finished in 

 time : the remainder will appear in the second 

 volume, and those which relate to the anatomy 

 and definitions in the third and fourth. 



