220 ENGLISH MEN OF SCIENCE. [CHAP. 



as seen in the . . . . , combined with what I 

 may call the accident of having been allowed 

 to explore part of it in an official capacity. 

 (14) Largely determined by my service in north 

 polar and equatorial expeditions. 



Chemistry. None. 



Geology. (7) Subsequently much influenced 

 by being thrown, at set. 19, on my own judg- 

 ment and resources in founding a mining colony 

 in the backwoods of .... and carrying it out 

 quite alone. 



Zoology. (2) Strongly confirmed and directed 

 by the voyage in the .... (13) My appoint- 

 ment to the surveying ship .... made me a 

 comparative anatomist, by affording opportuni- 

 ties for the investigation of the structure of the 

 lower animals. 



Botany. (5) They were directed to botany 

 purely through accidental circumstances [which 

 led to a prolonged residence in an imperfectly 

 civilized country]. 



