PREPARING FOR PUBLICATION, 

 A HISTORY 



OF THE 



BRITISH SESSILE-EYED CRUSTACEA. 



BY J. O. WESTWOOD, F.L.S., ETC. 



About Six Parts will complete the work ; these will be published monthly, at 

 2s. 6d. each. Part I. will be published shortly. The mode of illustration will 

 be similar to that adopted in Professor Bell's History of the Stalk-eyed species. 



Mr. Westwood solicits notices of habitats, &c., from those who have made 

 this interesting portion of the Crustacea their particular study. 



