PREFACE. XI 



Bowerbank's collection is now preserved in the British 

 Museum, having been purchased by the nation ; and 

 that the late Mr. Albany Hancock's Clionce, described 

 in the Appendix, together with his mountings of the 

 spicula, are in the Museum of Newcastle-upon-Tyne, 

 while a second series of his typical mounted spicula 

 is in the collection of the Editor. 



The members of the Eay Society will greatly appre- 

 ciate the brief notice of the life of Dr. Bowerbank which 

 follows this, and which has been kindly prepared by one 

 who was in close association with him for many years. 

 Few naturalists of the present generation will be 

 aware until they have read that interesting memoir 

 how much the progress of natural history in Great 

 Britain in years gone by was fostered and furthered 

 by the energy, zeal, and enthusiasm of our late kind 

 friend, the author of these volumes. 



