ex INTRODUCTION. 



ordinary walking circuit of every habita- 

 tion, unless it be in the heart of a great 

 city, are to be found data for the whole 

 study of Botany. 



Of what other science can this said ? 

 Of geology indeed the material may seem 

 equally common, but in fact it demands so 

 large a range of country that a student 

 can hardly get round his subject without 

 travel. Botany alone is adequately sup- 

 plied by the gifts of Nature within walking 

 distance. What is needed is that its ter- 

 minology should be popularised. This has 

 been attempted with great energy by Grass- 

 mann for Germany in his !l)eut[(^c ^sflaiv 

 gennamcn, Stettin 1870: and when Pro- 

 fessor Max Miiller put that book into my 

 hands he added a new zest to the present 

 study. The condition of the German lan- 

 guage in respect to habits of compound- 

 making is indeed peculiarly favourable to 

 the formation of a popular nomenclature, 

 yet we share this advantage with German : 

 in a diminished measure it is true, but the 

 faculty is capable of enlargement. I do 

 not however assume that an English no- 



