vifluals whom we place over their respective clcpartmcnts, 

 allowing them to chose their aides-de-camp ; but itshoiikl be 

 understood that they are responsible only for their indivi- 

 dual observations, and give credit in acknowledgment of all 

 assistance rendered. 



All the ditferent departments of Natural History are mu- 

 tually dependent on one another. Firstly, the geology and 

 physical features of a district affect the flora. To the 

 chalk districts, for instance, a certain flora is confined ; to 

 the London clay another, and so on. Then again the flora 

 of a district affects the fauna ; certain plants are the food 

 of certain insects, and therefore to know where to find the 

 plant will help us to find the insect. 



1st. The geology and physical features will therefore 

 constitute the key to the products to be found. 



2nd. The flora will constitute the next. 



3rd. The fauna the third. 



4th. Besides these we must place a division embracing 

 the marine fauna and flora, which are a distinct branch of 

 study, and are influenced by other considerations. 



In carrying out the work of determining the flora, fauna, 

 geology, &c., of this county, we must first make ourselves 

 acquainted with what has been accomplished by other 

 observers ; and in doing this we shall make out, also, the 

 bibliography ; but nevertheless it would be a task which 

 might be left to one direction. 



I do not think it advisable to map out the district into 

 square miles and assign to individuals the task of determin- 

 ing the botany or zoology of such district, because to do 

 so it would be necessary to have a statt' of officials always 

 ready, and with the time at their command, to examine 

 every such district every month of the year, which, 

 with the few workers we have, would be a manifest 

 impossibility ; on the other hand, I would avoid a 

 dcsultorious way of proceeding by requiring those ladies or 

 "■■cutlenicn who would undertake tlu; task to comnmnicatc 



