128 
THE FLORA OF WEST YORKSHIRE. 
recorded, and the names of the recorders are a sufficient 
guarantee for the correctness of the record. After some 
introductory remarks under the title of “Foreword,” the work 
opens with a well-written chapter on “Climatology,” treating of 
many and varied subjects in connection therewith, such as, 
position as affecting climate, aerial temperature in the Riding, 
atmospheric humidity and rainfall, winds, temperature in 
relation to vegetation, climatic and botanic zones, limits and 
areas of the four West Yorkshire zones, and zonal range of 
West Yorkshire flora, all of which are ably and fully discussed, 
the altitude above sea level of many of the districts being 
given, together with many tables in illustration. This 
chapter closes with a table giving the altitudinal limitations 
in West Yorkshire for 420 selected species of the ascending 
group from 150 feet to 2,400 feet, and some interesting 
observations on the Genesis of the flora. The chapter is full 
of instructive interest to both botanist and general student. 
The next chapter, “Lithology,” which treats of the rocks 
and soils, and their influence on the flora of the West Riding, is 
well written and thoughtfully worked out, and gives abundant 
evidence of close and attentive study, not only of the physical 
features of West Yorkshire, but also of the published works of 
other writers, such as Tliurmann and J. G. Baker, as well as 
of the excellent floras of Middlesex and Hants. The following 
are the headings of the leading paragraphs:-—1. Two Great 
Rock Types. 2. Physical Characters of the Hills of Each Type. 
3. Lithological Classification of Soils. 4. Comparisons between 
Thurmanns List and the Flora of West Yorkshire. 5. Botanical 
Features of West Yorkshire Soils. 7. Geographical Allies. A 
very full bibliography of the flora follows, giving data from 
1548 to 1885 ; the introductory matter concluding with the 
Plan of the Flora, which gives full explanations of the classifi¬ 
cation and details of that portion of the volume. 
The flora proper then follows. That devoted to flowering 
plants and ferns occupies 410 pages. The nomenclature and 
classification is mainly that of the 7tli edition of the “London 
Catalogue of British Plants,” though here and again a slight 
departure is made. The English name, where such exists, 
follows the botanical or Latin name, and, what is more 
interesting,*we have, so far as these are known, rustic names, 
and these are often very expressive. 
That the older authors have been carefully studied is seen 
by frequent quotations from their works. The quotations are 
fully given and the synonyms special to each author quoted. 
Many other details are given, such as range, upward or 
downward, in feet above sea level ; the degree of citizenship, 
