itESEARCHES CONNECTED WITH GEOLOGY. 
137 
MEMOIRS. 
Notes in illustration of the best means of preserving evidences of 
■ Botanical and other Researches in connection with Geology. By 
the Editor*. 
In tlie February (1843) number of the Geologist (p. 46) a report 
will be found wbicli at once sbows the desirability of observations 
on tbe plants peculiar to particular formations_, if there be any 
such rule — this being a question of doubt to a certain extent — 
and of a system being adopted^ in the collection of evidence ob- 
tained in the course of the inquiry. The report in question was 
interesting on many accounts^ not only for the very lucid idea 
which it gave of the vegetable productions in general of the 
district, but also for the short notices appended in many instances 
to those productions which might in a manner be said to be 
peculiar to one, or common to all formations — that there are 
plants which come under both these denominations we will not 
yet venture to say, although the researches of botanists have 
already proved distinct alpine, sub-alpine, median, and lowland 
species which extend to certain limits only, and beyond which 
they are absent. 
This, moreover, is not the object of our present article — we 
merely wish to call the attention of field naturalists to some 
general system of comparison, and at a future period we trust 
the benefits of this system will be made apparent in the pages 
of this work. We need not say that the inquiry is of the 
greatest interest as well to the agriculturist as to the man of 
science, and is therefore worthy of attentive study. 
General Instructions. 
The following particulars of each district are most desirable, 
viz. : — 
1. A description of the nature of the district — its extent, 
elevation, and natural features in general. 
* For the botanical department we are indebted to James E. Moxon, Esq. 
VOL. II. NO. XVII. O 
