09 
THE SCOPE AND AIMS OF APPLIED 
ENTOMOLOGY!. 
By a. D. IMMS, M.A., D.Sc. 
Reader in Agricultural Entomology in the Victoria University of 
Manchester; formerly Forest Entomologist to the Govt, of India 
and, Fellow of the University of Allahahad. 
CONTENTS. 
PAGE 
I. Introductory remarks ....... 69 
II. Medical entomology.70 
III. Agricultural entomology ....... 72 
(a) Natural methods of control of injurious insects . 74 
(h) Artificial methods of control.79 
IV. Economic entomology .81 
V. The place of physiological research in applied entomology 82 
VI. Conclusion.85 
VII. References to literature.85 
I. Introductory Remarks. 
The class In.secta has existed from early Palaeozoic times, develop¬ 
ing through the course of the ages into a numerical aggregate of species 
unknown and unparalleled in any other group of the animal kingdom. 
At the present day, there is every reason to believe that insect life is 
more abundant and luxurious than during any pre-existing epoch. 
With their remarkable adaptations to almost every conceivable environ¬ 
ment, their still lengthier persistence on our planet is a matter of the 
greatest probability. Dr Holland has predicted in a word-picture how 
the class is destined to be the last to survive when all other forms of 
1 Being the substance of an inaugural lecture delivered before the University of 
Manchester on November 26th, 1913. 
