iv Preface. 



with later samples. It will also furnish to a very large number 

 of persons, who at present are not informed on the subject, 

 a correct idea of the variety, extent, and importance of the 

 immense series of collected specimens which are here, carefully 

 guarded and kept in orderly arrangement, " not only " (according 

 to the terms of Sir Hans Sloane's will) " for the inspection and 

 entertainment of the learned and curious, but for the general 

 use and benefit of the public to all posterity." 



It furnishes documentary proof of the steady yet rapid 

 progress of the scientific value of the Natural History Depart- 

 ments and of the care and accuracy with which the responsi- 

 bilities undertaken by the Trustees have been discharged by 

 their officers. 



E. RAY LANKESTER. 



March, 1904. 



