278 THE JOURNAL OF BOTANY 
t 
spective merits of the selected gametes, and the ultimate vagaries 
thi cent 
m 
e farmyard, and fame is in store for the man who will solve the 
riddle of the blue Andalusian fowl. 
s with many theories at their inception, their application 
is afterwards found to be wider and more far-reaching i 
The differences among the children of the same parents are due to 
modifications of dominant or recessive characters, prevalent at 
different periods of their joint lives, to such small extent as they 
influence the common heritable characters of both. 
Freperic N. Winuiams. 
The British Moss-Flora. By Dr. R. Brarruw. Part xxiii. 
May, 1905. Pp. 201-274, title-pages, tt. exxi-exxviii. Price 
. London: published by the author, 26, Endymion Road, 
Brixton Hill. . 
Ir is twenty-five years since Dr. Braithwaite began the publica- 
tion of his great work on the British mosses, and with the present 
part he brings it to a close. With steady perseverance, and despite 
all the claims made upon his time by the exacting duties of his pro- 
fession, he has elaborated the details of his scheme, and completed, 
on his eighty-first birthday, a monograph which earns for him the 
gratitude of moss-students. Long may he live to enjoy the esteem 
which is his due! In such features as illustrations, synonymy, 
cited literature, and distribution of the species, the British Moss- 
