, 
66 | RECENT RESEARCHES IN THE DIATOMACEX. | 
especially the former, the structure is very abnormal and diffieult to 
derstand. The original Gilliesia was brought to England about the yea 
y Lindley in the ‘ Botanical Register 
(992) and by Hooker in the * Botanical Magazine’ (t. 2716). . The. 
that three elosely-allied genera, Brodiea, Gilliesia and Miersia, h 
| been discovered by, and named after, our own countrymen. 
RECENT RESEARCHES IN THE DIATOMACEZX. — 
By tue Rev. EUGENE O'Mzana, M.A. 
_The second of a series of treatises in course of publication under the 
direetion of Dr. Johannes Hanstein, under the title of ‘Boi 
in a few papers, give a brief analysis of the entire treatise. : 
With justice, the author remarks that since Nitzsch and Ehren- 
erg opened up the path to this interesting field of observation, very re 
as been added to Ses knowledge of the structure and development of 
soft contents of t frustule, notwithstanding that many 
* L* * P * a , g 
distinguished men, in different countries, have devoted themselves to Ie 
Thi ^ s i fact 
