1892]. Botanical Papers at the A. A. A. S. 281 
germinate more quickly after a considerable period of time 
had elapsed. Experiments touching this were instituted, 
with the following results: (1) That germination of treated 
seed is more rapid than of untreated seed immediately after 
treatment; (2) that this action continuously declines with 
time and the germination is ultimately less rapid and inferior. 
M. B. War “The fertilization of pear flowers.”—A 
brief general account was given of a large series of experi- 
ments on the fertilization of pear flowers. Abundant insect 
N crossing one tree of a certain variety with 
another of the same name. 
ant RILEY: ‘‘ The fertilization of the fig and caprifica- 
dered the question of the importation of B/asto- 
aie: es for the fig-growers of California, and pointed 
W it could be successfully done. He touched on the 
characterizing some fourteen of 
» Mexico and St. Vincent. 
‘‘d comparative study of the roots of 
€ paper contained the results of the ex- 
of about thirty species native to the 
» including a comparative study of the 
of the changes taking place through 
Authorities on meristem structure have 
eas f this order to a single type; while the 
able number 3 Principal types, each including a consider- 
es. It is usually assumed that second- 
O a greater or less extent in mature 
edons; but the author finds in many Ranuncu-" 
the basis ae structure persists in the older roots. 
Stowth, the Gan changes taking place through secondary 
or made three classes for the roots studied. 
