PREFACE. 9 



I have prepared a chapter on the advantages to be gained 

 by the practical study of insects, as also some remarks on, 

 and directions for, collecting and preservation of same. 



The necessity for the protection of our useful birds 

 forms material for another chapter, to which is added 

 a list (with scientific and common names) of the principal 

 kinds to be found in different parts of the colony. And 

 lastly, a copy of the quarantine regulations as carried out 

 in California. 



I have followed the excellent plan adopted in America 

 and elsewhere of furnishing some engravings of the prin- 

 cipal spray-pumps and other insect-destroying machines 

 many of which can be obtained from the various firms in 

 Melbourne. 



Owing to the limited time at my disposal, the absence 

 of many important types of insects for comparison, and 

 for other reasons, errors may have crept in, and I shall 

 be very pleased to receive additional notes or corrections, 

 the receipt of which will be duly and promptly acknow- 

 ledged. 



C. FRENCH. 



Melbourne, 1890. 



