Scientific Notices. 143 



attracted are stimulated to overcome every obstacle in the way of the 

 fulfilment of the great law of nature. After the female has been im- 

 pregnated, this effect appears to cease. 



Precisely similar circumstances took place with the Phaleena neustna, 

 the males presenting themselves at the window. 



I am, &c. 

 John Henry Davies, 



Curator Museum, 



Portsmouth Phil. Soc. 

 G. B. Sowerby, Esq., London. 



Fauna of the Island of Madeira. 



The Rev. R. T. Lowe, B.A., late Travelling Bachelor from the Uni- 

 versity of Cambridge, to whom we have been indebted for several Papers 

 on the Mollusca, is preparing for publication a " Pi odromus Faunae ct 

 Florae Maderensis, or Collections for a Natural History of the Animal 

 and Vegetable Productions of Madeira and the adjacent Islands." In 

 collecting the materials for this work the authour has enjoyed all the 

 opportunities afforded by a lengthened residence in the country, the 

 natural productions of which he has undertaken to illustrate. 



