DAVIES, ON MOUNTING OF MICROSCOPIC OBJECTS. 141 
the microscope simply for amusement. Among the numerous 
popular works on the subject, few have appeared more worthy 
of favour by the latter and very numerous class than the 
present. 
- In a short compass and in a few well chosen words, a con- 
siderable amount of information suited for beginners is 
conveyed on the mode of using the instrument itself, and of 
mounting the more common kind of objects. And the 
coloured illustrations, most if not all of which are stated to 
be by the hand of the authoress, are really excellent of their 
kind, and very well selected “ to present,”’ as she says in the 
preface, “‘ these wonders successively to view in the manner of 
apanorama.” ‘The utmost care,” it is said, “has been taken 
to make the work strictly accurate in its statements and exact 
in its pictorial representations of the objects déscribed,” and 
our inspection of the book enables us to say that this care has 
been well and successfully applied. We have observed few or 
no errors, but a considerable amount of useful and instructive 
information, conveyed in a lively and pleasing style. 
On the Preparation and Mounting of Microscopic Objects. 
By Tuomas Davirs. London: Hardwicke. 
“ Mucu information,” as the author remarks, “ concern- 
ing the preparation and mounting of microscopic objects, has 
been already published, but mostly as supplementary chapters 
only, in books written professedly upon the microscope. 
From this,” he says, “it is evident that it is necessary to 
consult a number of works in order to obtain anything like 
a complete knowledge of the subject.” His own pages, 
he says, “will be found to comprise all the most approved 
methods of mounting, together with the results of the 
author’s experience, and that of many of his friends, in every 
department of microscopic manipulation; and as it is in- 
tended to assist the beginner as well as the advanced 
student, the very rudiments of the art have not heen 
omitted.” 
We will only observe, after carefully looking through Mr. 
Davies’ work, that it appears to us a complete repertory of 
all that concerns the subject upon which it treats. The direc- 
