CIRRIPEDES. 349 



work.* The state of knowledge, as regards the Cirripedes, 

 was most unsatisfactory at the time that my father began to- 

 work at them. As an illustration of this fact, it may be 

 mentioned that he had even to re-organise the nomenclature 

 of the group, or, as he expressed it, he " unwillingly found it 

 indispensable to give names to several valves, and to some 

 few of the softer parts of Cirripedes." f It is interesting to 

 learn from his diary the amount of time which he gave to 

 different genera. Thus the genus Chthamalus, the descrip- 

 tion of which occupies twenty-two pages, occupied him for 

 thirty-six days ; Coronula took nineteen days, and is described 

 in twenty-seven pages. Writing to Fitz-Roy, he speaks of 

 being " for the last half-month daily hard at work in dis- 

 secting a little animal about the size of a pin's head, from 

 the Chonos archipelago, and I could spend another month, 

 and daily see more beautiful structure." 



Though he became excessively weary of the work before 

 the end of the eight years, he had much keen enjoyment in 

 the course of it. Thus he wrote to Sir J. D. Hooker (1847 - ? ) : 

 "As you say, there is an extraordinary pleasure in pure 

 observation ; not but what I suspect the pleasure in this case 

 is rather derived from comparisons forming in one's mind 

 with allied structures. After having been so long employed 

 in writing my old geological observations, it is delightful to 

 use one's eyes and fingers again." It was, in fact, a return to 

 the work which occupied so much of his time when at sea 

 during his voyage. His zoological notes of that period give 

 an impression of vigorous work, hampered by ignorance and 

 want of appliances ; and his untiring industry in the dissec- 

 tion of marine animals, especially of Crustacea, must have 

 been of value to him as training for his Cirripede work. 

 Most of his work was done with the simple dissecting micro- 



* The reader unacquainted with Romanes' article on " Charles Dar- 

 Zoology will find some account of win " (* Nature ' Series, 1882). 

 the more interesting results in Mr. f Vol. i. p. 3. 



