4 ETON NATURE-STUDY 



desirable to remove the object of study, such as the surroundings of 

 a bird's nest or the edifice itself photography is of the utmost 

 value. Those who do not wish to sacrifice an interesting caterpillar 

 when illustrating its life history, may get over the difficulty by 

 making a model which will often look even better than the inflated 

 skin of the real animal. In studying the foliage of trees with a 

 view to the recognition of the commoner kinds, no drawing could 

 be so useful for reference as a set of the various leaves already found. 



Notes, of which the interest or usefulness depends upon their 

 chronological order, may be made in ordinary books, the writing 

 being put on the left hand page, and the pictures on the right. 

 (See figures 1 and 2.) Long experience, however, goes to show that 

 details with regard to any special study to which additions are con- 

 tinually being made, are best entered upon papers which permit of an 

 easy re-arrangement, and which differ in character according as they 

 are used for drawing or for writing. As a rule, such sheets would 

 have to be kept loose in a folio, box or large envelope, which is not 

 convenient when they have to be carried about. A note-book of a 

 special character has, therefore, been designed, to which fresh leaves 

 can be added, and from which they may be transferred to another of 

 the same kind. (See Appendix, page 148.) 



It is perhaps necessary to emphasize the fact that whatever may 

 be the case in scientific work where the investigations of others have 

 to be taken into consideration, in nature-study, all notes and 

 illustrations must be the work of the individual. For the same 

 reason, extracts from the poets, though valuable in connection with 

 nature -study as serving to keep its emotional side to the fore, 

 should rather be written out in a separate book with a note as to 

 the observations which recalled each passage. 



The use of collections will be touched upon in Part II, but it is 



