asexual, the dispersion and germination of the reproductive cell* 
''"■ nutrition and effects on them of varied environments en' 
zymes,and ferments, parasitism and the relations of the parasites to 
their 'hosts," symbiosis, various agencies, chemical an 1 physical, 
thai aflect their well-being, and their distribution in spar.. and in 
time. A chapter on "personal views in phylogenv '* ..pens m» 
several important question*, and will be found both infero^i;,- 
hor's views do or do not commend 
themselves to the reader. The very important practical questions 
y fungi, and the action of the legislature 
with a view to checking the spread of disease, receive careful con- 
siderauon. The last part of the Text-book is devoted to the 
exposition of the systematic groups, in the course of which their 
relations to one another are. discussed, and reasons arc adduc-d for 
the conclusions arrived at. A most valuable feature is a list, at 
the close of each section, of all important works relating to' it. 
There are many excellent wood-cuts, which add much to the 
value and clearness of the exposition. Mr. Ma.-e, deserves the 
thanks of students of fungi for having placed at their service an 
-\v useful and stimulating book, in which tlwv will find 
aids to further research. 
But there are certain features that should be altered in a future 
edition. Among these are occasional obscurities in expression, 
which might readily be misunderstood, and would probably be so 
by one using the book as an introduction to the fungi. It is at 
times difficult to be sure whether some passage states the author's 
own view of the question or is quoted by him, but not accepted : 
""i page 68, one might suppose that he accepted the multiple 
or polyphyletic origin of fungi from algae, 
of his " personal views on phylogeny " shows he does 
fix' section on <■] ^Mtication the relative subordination 
h\s would be much easier to follow were the i 
families and lower grades not all printed in type of the sa 
a size, by the way, less important, as regards the appearanc 
type, than the frequent heading in capitals "KEY TO . 
The names of the famil a alike are mad 
in ece or iea\ so rl ai tin r. is . out hi.m !> n\een these gradi 
a suli-f.ooily of the same name exists within the family 
" Pfrixjiorinr." \} m these are all minor defects, which 
Imt slightly from the value of the book as a guide to the t 
fungi. Its usefulness will be greatest to those who already 
1_ ~ vledge of the subject and can appreciate i"~ 
Kew Bulletin : Additional Series VII.-The various papers d-ahn- 
wub rubber that have apneatvd in the JJu/frfin since l*S, have 
been collected as the third instalment of " Select.- I I'ap.-rs fr..m 
the Kew Bulletin;' and issued as the seventh volume of its 
"Additional Series." The following preface accompanies the 
reprint :— , 
" The object of the volumes of « Selected Papers from the Kew 
Bulletin,' to which the present one belongs, has been explained 
