A. D. Imms 
85 
about 20 "/o of the females taken had not deposited their ova, 496,000 
possible larvae were thus prevented from coming into existence. The 
total cost of the experiment was stated to be £64. 
VI. Conclusion. 
I have endeavoured to show in the brief space of this article what 
the aims of applied entomology are. How wide the field is for the 
higher forms of scientific research. The conceptions of the scope of 
entomology, in relation to agricultural development, have gradually but 
surely expanded in all civilised countries. At the present day, a worker 
in this field finds himself involved in problems of a vastly wider range 
than the superficial anatomy of a common insect pest or the compound¬ 
ing of a standard insecticide. To carry out this line of work, in order 
that it may ultimately benefit the State, requires men properly trained 
in methods of research. Adequately fitted laboratories are necessary, 
with funds for their annual maintenance. Ready access to affected 
districts where problems can be studied in the field is also essential, 
and it is mainly from a combination of laboratory and field work that 
success is most likely to ensue. State recognition of the value of 
entomology has recently made considerable progress in this country. 
The formation of the Imperial Entomological Bureau marks the most 
important step yet taken in Europe towards official recognition of the 
subject. The establishment of a chair of entomology at the Imperial 
College of Science, the appointment of an entomologist to the Board of 
Agriculture, and the founding of a state-aided department of Agri¬ 
cultural Entomology at Manchester University augur favourably for the 
future of the subject in England. 
VII. REFERENCES TO LITERATURE. 
Ballou, H. A. (1907). Treatment of Cotton Pests in the West Indies. tVesi 
Indian Bulletin, vol. ix, p. 2.35. Also Trans. Internal. Entom. Congress, Oxford. 
1912, pp. 315-316. 
Barrows, W. M. (1907). The Reactions of the Pomace Fly to Odorous Substances. 
Journ. Exp. ZooL, iv, 515-537. 
Bellevoye et Laurent (1897). Les Plantations de Pins dans la Marne et les 
Parasites qui les attaquent. Bull, de la Soc. d’^tude des Sci. Eat. de Reims, 
112 pp. 
Berlese, a. (1913). The Conti-ol of the Japanese Fruit Scale {Diaspis pentagona). 
Mon. Bull. Agric. Intell.; Internal. Inst. Agric. Rome, pp. 697-703. 
