viii 



PREFACE. 



faith," it has been my aim to pass over mere personal disputes, 

 and to show the working of principles which are still on their 

 trial. Those sentiments and convictions of his which he 

 adopted in later life are, I trust, fairly stated. 



This book is chiefly written for those who knew him in part, 

 and wish to know more of him. Their living remembrance 

 must help to give it life. For their sakes I have added an 

 engraving from a photograph taken just before he left England, 

 and pictures of his homes. 



R. L. C. 



Bridport, December, 1879. 



Postscript. — His most important scientific work, on the 

 Chitonidse (see pp. 352-354), is being prepared for publication. 

 Mr. Dall writes from the Smithsonian Institution, Washington, 

 D.C., Nov. H, 1879: — "The revision of the manuscript will now 

 take place, and the engraving of the illustrations : a work so exten- 

 sive (and expensive) that I presume it will be a year or two before 

 the volume appears in published form." 



