RECENT LITERATURE. 189 



lant. That scent is certainly the chief (if not the only) sense that 

 attracts male moths to a female would seem to be proved by the fact 

 that the box, or pocket, in which the female may have been carried 

 does not instantly cease to be attractive with the removal of the 

 captive, or with the ending of her life. I have seen Eggars and 

 Emperors drawing up wind to a female for quite surprising distances, 

 but I never remember to have seen one come in the contrary 

 direction. — George Bolam ; Alston, April 24th, 1922. 



Flashlight Photography and Nature. — At a recent meeting 

 of the Lancashire and Cheshire Entomological Society Mr. Wilkinson 

 showed how the student who had little daytime leisure for camera 

 work could obtain better results at night by means of flashlight, and 

 at the same time gather a series of records of nocturnal habits of 

 insects and other creatures of great value to science. There is a 

 vast field of research in this direction, for as yet only the fringe has 

 been touched, and the speed of the exposure — about 5 * Q tb of a 

 second — makes the operator almost independent of the movements 

 of the subject. The slides showing the change of the caterpillar of 

 Pyrameis carclui, for instance, proved this unmistakably : during the 

 process of getting rid of its old skin the caterpillar is in a state of 

 rapid oscillation, but the photographs were as clear and definite as if 

 the insect had been at rest. The succession of pictures showed the 

 different stages of this metamorphosis from the first spinning up of 

 the larva to emergence of the butterfly. — Charles P. Eijmmer. 



RECENT LITERATURE. 



Index Animalium : 1801-1850. Pt. I : Introduction, Bibliographj 



and Index — A-Aff. By C. D. Sherborn. 8vo. Pp. i-cxxi 



and 1-128. London : By Order of the Trustees of the British 



Museum, 1922. 



Zoological workers in all groups who know a good thing when 



they see it, and especially those who value accuracy in nomenclature, 



will welcome with thanksgiving this further instalment of the fruits 



of Mr. Sherborn's years of self-sacrificing labours. To catalogue a 



small group of animals is no light task ; to index accurately all the 



names applied to animals over a period of fifty years is indeed 



heroic. The amount of work clone is clearly shown by the great 



length of the bibliography, which alone will save many trying hours 



of labour to other workers in this field. There can be no bwo 



opinions as to the value of the work; it is indispensable. We 



strongly advise all systematic workers to get it and to use it. 



Report of the Proceedings of the Fourth Entomological Meeting held 



at Pusa, February, 1921. Edited by T. Bainbrigge Fletcher, 



E.N., F.L.S., etc. Pp. xii + 101. Plates I-LVIL Calcut l a : 



Government of India, 1921. 



Naturally composed mainly of matter of economic interest, this 



volume is quite up to the standard of its forerunners in quahtj it Qpl 



in bulk. Well over half the volume is devoted to lists of crop Dests, 



observations on miscellaneous pests ; forest, medical and veterinary 



