vi THE ROTIFERA. 



specially anxious that my colleague's last discoveries should be 

 placed where he himself wished to have them. 



The natural pleasure, with which I see the observations and 

 studies of thirty-five years thus brought to a successful conclusion, 

 has been indeed marred by the sad loss of my deeply lamented 

 friend. His great knowledge and experience, his keen powers of 

 observation, his artistic skill, and his rare gift of description are 

 known to all, and have made him facile princeps among the writers 

 on the Eotifera ; but it is only those who, like myself, were privi- 

 leged to know him intimately, that are aw^are how much more he 

 was than an enthusiastic naturalist. I shall never forget the hearty 

 welcome (when I first met him) that the veteran gave to the com- 

 paratively unknown student, or the gracious kindness with which 

 he subsequently placed at my disposal his beautiful unpublished 

 drawings and his ample notes. 



A happy chance had led our observations to differing parts of 

 the same subject, and our united labours have produced, in con- 

 sequence, the now completed work ; but I shall ever count it a still 

 happier chance, that gave me not only such a colleague, but also 

 such a friend. 



C. T. HUDSON. 



