r 
300 
society for the corresponding years, that the 
average time given to study is ten hours a 
week instead of eight, that there 
has-been no difficulty in finding a 
large number of cultivated gen- 
tlemen who were willing to give 
their time and attention to the 
work, and that the wonderful suc- 
cess of the earlier society may be 
taken as an indication of what 
may be done for young men by 
the same means. The secretary 
says, ‘* This year’s work has 
convinced us that we have every 
promise of the society’s becom- 
ing a successful and useful insti- 
tution, and that it is meeting a 
great need in a practical way.’’ 
A year later it is decided to give 
up the organization ; and no more 
specific reason for this course is 
given than that the committee is 
satisfied, on the whole, that the 
good done is not enough to make worth while the 
labor required of officers and correspondents. 
THE BIOLOGICAL LABORATORY OF THE 
JOHNS HOPKINS UNIVERSITY. 
Tue recently opened biological laboratory 
of the Johns Hopkins university is eighty-four 
by fifty-two feet in external measurement, and 
Fie. 1.— 20, vestibule; 21,main hall; 22, work-room for practical instruction of less 
advanced students ; : D4, 30, ventilating- shafts; 25, storeroom of materials and reagents 
for general practical class- work ; 26, chief assistant’s room; 27, storeroom for dia- 
grams and lecture-apparatus; 28, lecture-room ; 29, elevator ; 32, cloak-room. 
SCIENCE. 
river bluestone. While free from any attempt 
at mere architectural display, the building is 
Fig. 2.—33, 34, hall and corridor; 35, museum; 36, advanced nomial 37, 
preparation-room for museum ; 
phy; 44, advanced botany; 45, lecture- room; 46, "elevator; 47, 39, Ventilating- 
shafts ; 51, lavatory. 
40, assistant’s room; 41, library; 42, 43, photogra- 
handsome, as will be seen on examination of 
fig. 5, which represents its north and west ele- 
vations. <A fact that at once attracts attention 
is the number and large size of the windows: 
as the laboratory is free on all sides, it is there- 
fore very well lighted. 
On ascending the front steps, and passing 
through the door, the visitor enters the main 
hall, from which a wide staircase ascends to 
the third story, and on which 
most of the rooms of the first 
floor open. This floor is given 
up to the regular class-instruc- 
tion of students not engaged in 
special work. It has on it (see 
plan, fig. 1) a lecture-room with 
seats for sixty ; a storeroom con- 
nected with this, for the keeping 
of diagrams and lecture-appa- 
ratus ; an administration-room, 
the headquarters of the chief 
assistant; a preparation-room 
containing a supply of the re- 
agents, specimens for dissec- 
tion, and histological material 
required for the daily practical 
LI class-work ; and the large gen- 
eral laboratory, thirty-two by 
forty-eight feet. 
The latter (fig. 6) has win- 
dows on three sides. Around 
these sides runs a work-table, 
consists of three stories and abasement. It is 
built of Baltimore pressed brick; with steps, 
entry, window-sills, and band-courses of Cheat- 
supported, independently of the floor, on 
brackets attached to the walls, and affording 
ample space for thirty students. If necessary, 
