358 PROCEEDINGS OF SECTION IH. 
At the top, which is a platform about 12 ft. square, is 
placed a central pier to carry a theodolite for practising rounds 
of angles, the height being sufficient to render visible many 
definite points, botli in the city and suburbs, and also trigono- 
“ieee points on distant mountains. 
. It provides opportunities for investigating wind pressure 
a spree upon which there is much need of further research. 
Behind the tower comes the laboratory proper, consisting of 
a room, 50 it. by 30 ft., the whole of which is commanded by a 
travelling crane capable of lifting 2 tons. Access is provided 
from outside by a sliding door capable of admitting an ordinary 
dray or jinker, so that any heavy object may be at once brought 
under the crane. The room is well lit from both sides, but 
the windows are kept high, so as to leave an unbroken wall 
space of about 8 ft. from the floor to provide for ample shelving 
for the stowage of tested specimens. At some future time an 
engineering museum may be provided, but for the present the 
laboratory must act as museum, and is adapted for the pur- 
pose. 
In the laboratory will be placed the fine Greenwood and 
Batley testing machine that the University has possessed for 
the past ten years. Other testing machines may be added as 
financial considerations permit. 
At the rear of the laboratory are two commodious and well- 
lit workshops. One, the larger, for metal work, and here the 
gas engine, lathe, shaping, drilling, and other machines will 
be placed; the other workshop is for wood, and will contain 
a lathe, driven from the engine, and other apphances. Outside 
will be a yard, with a tall, close fence, within which cheap 
sheds may be placed. One of these will contain a forge, emery- 
wheel, grindstone, and other appliances of a comparatively 
rough and dirty kind. Another will constitute the hydraulic 
iaboratory, which will be provided with means of occupying 
the ordinary laws of flow of water, testing efficiency of turbines 
and pumps, &c. A supply of water from the top of the tower 
through a pipe of ample dimensions to render friction head 
negligeable will provide for many such experiments. Also ar- 
rangements are made for having a centrifugal pump, driven 
by the gas engine, to supply a comparatively large quantity of 
water at a small elevator for experiments on weirs. In view 
of the increasing importance of hydraulic engineering, this 
hydraulic laboratory should be of great value both for teaching 
and research purposes. The first floor in its arrangements 
closely follows the ground floor. The surveying lecture-room 
and lecturer’s private room are directly over the corresponding 
rooms below, while over the laboratory is the main drawing- 
room, commodious and well lit. Over the workshops we have 
smaller rooms for special purposes, including photography. blue 
