MENDELISM 277 
school hold, or are the specific and the adaptive marks patel?” i 
n his opinion, the reasons for which on ceeds to show, ‘ ther 
can be no doubt that the latter is the ca 
book is divided into two main Nein Bryophyta and 
Pterodophyta with Spermophyta ; the first contains Hepatic and 
Mosses, and is treated at considerable length—a proceeding which, 
says the a gaa “* receives its justification in the fact that these 
the Pteridophyta much use is made of Prof. Douglas Cam pbell’s 
researches as embodied in his Structure and Development of Mosses 
and Ferns *—* the most complete account of the grou 
It would be impossible, in the space at our disposal, to give any- 
thing like an adequate notice of this important work, of which the 
mere table of contents extends to twenty pages. The original has 
already taken its position as an indispensable summary of the 
observations of other oeatate and as a monument of the author’s 
own researches ; and in its English form it cannot fail to become 
the text-book of the advanced student. The work is the more 
observed carefully the plants in their native habitats; some o 
his eo raus observations are very entavoating ; thus, speaking of 
macrantha, which he found in West ee he notes that 
the deeeriplion in systematic works of the stem as twining is in- 
correct: ‘‘ the leaves have very long stalks and cling to shrubs by 
their outer tentacles, which are bent back specially as traps for 
insects, and the leaf-surfaces lie with their under side upon the 
upper surface of the twig, a striking secretion of the recurved ten- 
sai. up the book opens F easily and will lie open flat upon the 
table—a small detail which adds greatly to the facility and pleasure 
of using it 
Mendelism. By R. C. Punnerr. 63, 12mo. Cambridge: 
Macmillan & Bowes. 3008: Pric e 2s. 
Ir is doubtful whether the modesty of the Abbot of Briinn would 
have allowed him to view with favour the form of advertisement 
saa mn pete sal or tendencies with the meretricious 
of an The much abused suffix may be either distinctively 
oe. or contemptuous, or damnatory, among examples 
respectively such as Darwinism, Balfourism, and Hooliganism. 
The progress of a cult to the dignity of an -ism is neither uniform 
nor permanent. So much has been written latterly on the biological 
significance of the trend of investigation, forelimned in Mendel’s 
* See Journ. Bot. 1896, 89. 
