398 BOTANICAL GAZETTE. 
only a short walk across the campus takes one to the main library 
of Harvard College. ; 
e microscopes used in the Harvard laboratories are Zeiss (1 
large stand, 3 No. VI), Verick (12), Leitz (3), Wales (1), Ross 
(1), and a set of six objectives by Tolles, with plenty of accessory 
apparatus, : 
Excellent provision is made for physiological work, for which 
there is ample supply of ordinary chemical and physical appara- 
tus with such special appliances as micro-spectroscopes, auxano- 
meters, clinostats, thermo-regulators, ete. : 
The laboratories are in general open three days in the week 
from nine until five, except for special students who can attend 
every day except Saturday and Sunday. There can be accommo- 
dated at one time in morphological work sixty, in biological course 
BIOLOGICAL BUILDING OF UNIVERSITY 
PENNSYLVANIA. ; 
thirty, in histology fourteen, in advanced cryptogamic botany s!x 
ao in advanced vegetable physiology and systematic botany 
welve. 
Every facility and encouragement is provided for original re- 
search, and the number of teachers of botany whu come for study 
each year gives evidence of the wide appreciation of the oppor 
tunities. Taken as a whole the botanical laboratories of Harva 
University are the most extensive and important in the country: 
_the botanical building at Cornell University consists of "5 
main part erected in 1872, 97 by 58 feet, three stories high, whie 
contains what is probably the finest botanical lecture room ie 
America, and an excellent economic and illustrative museum 9 
orany. A two-story extension, 35 by 30 feet was put up in 1882, 
which with some of the older part is entirely devoted to at 
tories. This structure although forming a part of the large build- 
