ioo The Scottish Naturalist. 



(i.) — The scientific name of the species, with the author's name. 



(2.) — The horizontal range. 



(3.) — The vertical range. 



(4.) — The habitat, and an indication of the commonness or 

 rarity of the species, and, in the case of its being rare, a 

 list of localities, with name of authority for the occur- 

 rence. 



(5.) — A statement as to the distribution north, south, east or 

 west outside of the district. If the range of the species 

 in any direction is terminated in the district, this should 

 be mentioned. 



(6.) — With regard to the migratory species, the seasons at which 

 they appear should be mentioned as well as whether they 

 breed in the district. 



(7.) — Variations of the species in the district. 



These seven items embrace the most important facts that re- 

 quire to be stated in the catalogue, but in addition to them some 

 others may be given if necessary. These would include 



(8.) — Date of first record. 



(9.) — The local names. 



(10.) — Local legends and local uses. 



I shall now proceed to give some notes explanatory of what is 

 required under each of the above headings. 



1. — The name of the species. Care must be taken that the 

 correct name is ascertained. Better omit the species altogether 

 than run the risk of making the catalogue unreliable by inserting a 

 doubtful name. 



2. — The horizontal range. How this is to be indicated is a 

 matter of very great importance. You will therefore kindly 

 pardon me if I dwell on it at some length. Let us take for ex- 

 ample the district of the East of Scotland Union, which, as you 

 know, includes the counties of Fife, Kinross, Perth, Forfar, Kin- 

 cardine, and Aberdeen. To indicate the horizontal range of a 

 species, we may take each of those counties and mention the dis- 

 tribution in it. That would be one way. Or we may adopt the 

 sub-provinces into which the late H. C. Watson has in his works 

 on the Phyto-geography or Geographical Botany of Britain divided 

 the district. These are two, as follows : — The South-east High- 

 lands, which includes Fife and Kinross ; Stirling ; West Perth 

 and Clackmannan : Mid Perth ; and East Perth. The Mid-east 



