PREFACE. vii 



Cunnington from Wiltshire. It is earnestly to be desired that these gentlemen, and all 

 others who, with similar ardour and success, investigate the Crustacean remains of theii- 

 respective localities, will endeavour to remedy as far as possible this lamentable deficiency, 

 and I trust that I may thus be enabled, in a supplement to the third and concluding part 

 of this work, to give a satisfactory description of various species, to which belong numerous 

 beautiful specimens of limbs, which I have been obliged, most reluctantly, to return to 

 their kind owners uudescribed and unemployed. 



I cannot close these few remarks without again oflfering my cordial acknowledgments 

 to my friends who have most liberally aided me in this portion of my work, and especially 

 to the two gentlemen above named, to Dr. Bowerbank, to the Messrs. Woodward, of the 

 British Museum, to Mr. Norman, of Ventnor, to the Council of the York Museum, and 

 to Mr. Dallas, the curator of that collection, who have, without reserve, placed their 

 invaluable collections at my disposal, and thus contributed to the completion, or rather 

 to the very existence of a work which, but for their kind assistance, could never have 

 seen the light. 



The Wakes, Selborke ; 

 March 3, 1862. 



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