15 



collections lias been issued under his care, many of the depart- 

 ments having been described by himself; thus, only a few 

 months ago he brought out his " Hand-List of Seals, Morses, 

 Sea-Lions, and Sea-Bears." But in addition to these official 

 publications, and to the large number of his communications 

 to learned societies and scientific serials, he found time to write 

 such works as " A Manual of Bi'itish Land and Fresh- Water 

 Shells;" "Illustrations of Indian Zoology;" and "The Knowsley 

 Menagerie." Years of concentration upon the minute shades 

 of difference necessary for the identification of species scarcely 

 tend to broaden a man's views ; but it should not be forgotten 

 that Dr. Gray, in addition to his labours as a systematic zoo- 

 logist, exercised himself in the discussion of wide questions of 

 social importance, such as public education, prison discipline, 

 the postage system, and the organization of museums and 

 galleries of art. His claims to public notice, however, must rest 

 upon the half-century of scientific work which he honestly 

 devoted to the service of his country. 



Watson and Hazell, Printers, London and Aylesbury. 



