REVIEWS. 
527 
The second part of the book is illustrated with a map coloured to show 
the districts drained by the several rivers. Here the author conducts the 
tourist about from dale to dale, pointing out the beauties of the scenery, 
its geological aspects, shows where rare plants may be gathered, and gives 
us their names ; reminds us now and then of what has been sung by 
Wordsworth and Scott ; and is altogether a pleasant and valuable 
companion. 
The third part, on botany proper, is prefaced by a summary of condi- 
tions affecting a flora ; and then follows a catalogue of the species. Here 
the author indicates in which of the drainage districts his plant is found, 
its range in height, the conditions under which it occurs, and the localities 
where it may be met with. 
And, finally, there is an appendix giving an account of all the books, 
papers, and herbaria relating to the North Yorkshire flora, and an index 
of localities, and another of the genera of plants. 
AVith all this material so systematically arranged, it is impossible not to 
regret that the author has not himself given some outline of those con- 
clusions to which it cannot but have led. AVe would fain have learnt 
what variations the plant growing on the mountain-top presents when 
compared with the same species from the vale. AVe would gladly have 
been told whether the plant growing on clay was distinguishable from the 
same species inhabiting sandstone or limestone. A\ r e would have discovered 
what bearing all these external influencing conditions have on the flora, 
and what the significance of the limited range of a species may be. 
Perhaps Mr. Baker may yet Ho induced to give in some other form the 
results of his experience. 
In conclusion, we can only urge all who go to North Yorkshire, and 
know the rudiments of botany or geology, to avail themselves thankfully 
of so luminous a guide as Mr. Baker. 
