ee 
1888. | BOTANICAL GAZETTE. 287 
tain stages, leading to the final result of covering the whole 
trunk of the tree. Ridges from a tree of fifteen years were 
broken off about four feet from the ground. The annual 
deposition of corky substance was seen here to diminish as 
the tree grows older, the later years’ rings being much nar- 
rower than the earlier ones ; 
Ss. 
Biological Dep t, Univ. of Penn. 
Botany at the University of Gottingen. 
W. E. STONE. 
niversity at Géttingen, 
rite a description, has 
and retained an 
O 
laboratory to be equalled by few others in Europe, 
garden is notably well stocked and cared for. For the latter 
much credit is due Prof. Graf zu Solms Laubach, 
Many years was director of the same and pro 
tematic botany. In the spring of the present year he re- 
ceived almost simultaneous calls to the Universities at 5 4 
burg and Berlin, accepted the former, and now occupies the 
chair of deBary. 7 
There is a tacit division of the work here into the phys 
logical and systematic departments, each presided over by 
meaent professors, and each with its own laboratory, 
lbrary and lecture room 
The present director of the garden and professor of sy 
tematic botany is Dr. Peters, formerly 4 student and — 
ant with Nageli, His work upon the genus Hierecintt 2 
; He was called to Gottingen !ro 
San: i Sader sda is one O Oe aah ; 
é resting old town, occu y dwigs-" artly with- 
Or six acres ot axed lying at thin and p ary ® = 
Out the old wall.” The latter is no longet hundre 
Which it was planned and built some three or four cranes 
years ago, but has become 4 pleasant pleratet Pot fine old 
With grassy slopes aud planted with a double row © 
a ae ot : ene % 
