- 392 



added to the pile a shovelful of chloride of lime should be thrown 

 over it. Paraffin sprinkled over the refuse kills the grubs. 



The winner of a 400 (10 ooo frs.) prize offered by the Paris 

 newspaper, * Le Matin, ' for the best description and mode of 

 fighting the house-fly, recommended the use of the thick residuum 

 left behind after the distillation of crude shale (schist) oil. This 

 shale oil was stirred up with its own volume of water. Two litres 

 of the oil would serve to dress a square metre of cesspool or dung. 

 In connection with dung-heaps, the author declares that excellent 

 results will be obtained by mixing the oil with soil and scattering 

 layers of this at intervals during the summer over the dung-heap. 



Fowls take the larvae greedily. 



F. P. JEPSON. The Breeding of the Common House Fly (Musca 

 domestica) during the Winter Months. Journ. Eton. BioL, 

 4, 1909, N. 3, pp. 78-82; E. S. R., March 1910. Washington. 



A paper read before the Association of Economic Biologists at 

 Oxford, July 13, 1909. 



Sis RUBERT W. BOYCE. Mosquito or Man. The Conquest of the 

 Tropical World, pp. xm-)-28o 50 illus. London, John Murray, 

 1910. Pp. xvi -\- 280. 



See XLVI in the present volume. 



First edition, October 1909; Second edition, February 1910. 



